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Full vulnerability report · 2026
CVE-2026-40356High confidence

An unauthenticated remote attacker can trigger this, possibly causing the process to terminate in parse_message

MIT · Kerberos 5

5.9MediumCVSS 3.1
Recommended action
Within 7 days

Medium technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance.

Patch available
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityMediumOperational priority:High, raised one band.upgradedsince 28 Apr 2026

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • A structured source references public exploit or proof-of-concept material.
  • The selected CVSS metric records a network-reachable, unauthenticated path with no user interaction.
  • EPSS is 0.78% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict the affected network interface to trusted sources where business-safe.
  • Increase monitoring for the attack path and post-exploitation behaviour described in the report.

Verification

  1. Confirm that the asset runs MIT Kerberos 5 and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: Within 30 daysRemediation target: Within 180 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Distribution package intelligence

Release-specific package status

Debian, ubuntu findings are scoped to the named distribution, release and source package. An absent finding does not mean a package is unaffected.

5 package states
Repository candidate not checked

A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.

Distribution releaseSource packageVendor stateFixed versionEvidence
Debian trixietrixie · sourcekrb5Vendor fix publishedDebian records a fixed source-package version for this release.1.21.3-5+deb13u1Debian Security Tracker ↗Source updated 6 Oct 2026
Debian bookwormbookworm · sourcekrb5Vendor fix publishedDebian records a fixed source-package version for this release.1.20.1-2+deb12u5Debian Security Tracker ↗Source updated 6 Oct 2026
Debian forkyforky · sourcekrb5Vendor fix publishedDebian records a fixed source-package version for this release.1.22.1-2.1Debian Security Tracker ↗Source updated 6 Oct 2026
Debian sidsid · sourcekrb5Vendor fix publishedDebian records a fixed source-package version for this release.1.22.1-2.1Debian Security Tracker ↗Source updated 6 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivekrb5Vendor fix publishedCanonical reports that a fixed source package version has been published. Repository candidate availability is not checked by BlackTree.1.20.1-6ubuntu2.7Canonical Ubuntu Security ↗Source updated 6 Oct 2026
Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

1 current
CVE-2026-40356 · CSAF 2.0 · revision 3 · finalRed Hat Product Securitykrb5: MIT Kerberos 5 (krb5): Denial of Service via integer underflow and out-of-bounds read
18 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • krb5-devel as a component of Red Hat Enterprise Linux 6
  • krb5-libs as a component of Red Hat Enterprise Linux 6
  • krb5-pkinit-openssl as a component of Red Hat Enterprise Linux 6
  • krb5-server as a component of Red Hat Enterprise Linux 6
  • krb5-server-ldap as a component of Red Hat Enterprise Linux 6
  • krb5-workstation as a component of Red Hat Enterprise Linux 6
  • krb5.src as a component of Red Hat Enterprise Linux 6
  • libkadm5 as a component of Red Hat Enterprise Linux 6
  • krb5-devel as a component of Red Hat Enterprise Linux 7
  • krb5-libs as a component of Red Hat Enterprise Linux 7
  • krb5-pkinit as a component of Red Hat Enterprise Linux 7
  • krb5-server as a component of Red Hat Enterprise Linux 7
Summary
A flaw was found in MIT Kerberos 5 (krb5). An unauthenticated remote attacker can exploit an integer underflow and an out-of-bounds read vulnerability by calling `gss_accept_sec_context()` on a system with a NegoEx mechanism registered. This can lead to the process terminating, resulting in a Denial of Service (DoS).
Remediation
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2026-25993

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionWithin 7 days

Medium technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance.

Patch available
01

What, why and how

In MIT Kerberos 5 (aka krb5) before 1.22.3, there is an integer underflow and resultant out-of-bounds read if an application calls gss_accept_sec_context() on a system with a NegoEx mechanism registered in /etc/gss/mech. An unauthenticated remote attacker can trigger this, possibly causing the process to terminate in parse_message.

What

In MIT Kerberos 5 (aka krb5) before 1.22.3, there is an integer underflow and resultant out-of-bounds read if an application calls gss_accept_sec_context() on a system with a NegoEx mechanism registered in /etc/gss/mech. An unauthenticated remote attacker can trigger this, possibly causing the process to terminate in parse_message.

Why

The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

In MIT Kerberos 5 (aka krb5) before 1.22.3, there is an integer underflow and resultant out-of-bounds read if an application calls gss_accept_sec_context() on a system with a NegoEx mechanism registered in /etc/gss/mech. An unauthenticated remote attacker can trigger this, possibly causing the process to terminate in parse_message.

Why

The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
Reference recorded

A structured CVE source labels at least one public reference as exploit material. BlackTree has not independently validated that it is safe, reliable or weaponised.

Likely attack path
a network path → Integer Underflow (Wrap or Wraparound) → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
Attack complexity
High: exploitation depends on specific conditions
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-191 ↗

CWE-191: Integer Underflow (Wrap or Wraparound). The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACHighAttack complexity: Successful exploitation depends on specific conditions outside the attacker's direct control.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CNoneConfidentiality impact: No direct loss is represented by this metric.INoneIntegrity impact: No direct loss is represented by this metric.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkUnauthenticatedCWE-191Public exploit reference
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

BSI · German · WID-SEC-2026-1290MIT Kerberos: Mehrere Schwachstellen ermöglichen Denial of Service

Ein Angreifer kann mehrere Schwachstellen in MIT Kerberos ausnutzen, um einen Denial of Service Angriff durchzuführen.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20260429Security Bulletin 29 Apr 2026

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 29 Apr 2026, published on 29 April 2026. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0958Multiples vulnérabilités dans les produits IBM

d?id=CVE-2026-39831 Référence CVE CVE-2026-39832 https://www.cve.org/CVERecord?id=CVE-2026-39832 Référence CVE CVE-2026-39833 https://www.cve.org/CVERecord?id=CVE-2026-39833 Référence CVE CVE-2026-39834 https://www.cve.org/CVERecord?id=CVE-2026-39834 Référence CVE CVE-2026-39835 https://www.cve.org/CVERecord?id=CVE-2026-39835 Référence CVE CVE-2026-40046 https://www.cve.org/CVERecord?id=CVE-2026-40046 Référence CVE CVE-2026-40175 https://www.cve.org/CVERecord?id=CVE-2026-40175 Référence CVE CVE-2026-40198 https://www.cve.org/CVERecord?id=CVE-2026-40198 Référence CVE CVE-2026-40199 https://www.cve.org/CVERecord?id=CVE-2026-40199 Référence CVE CVE-2026-40356 https://www.cve.org/CVERecord?id=CVE-2026-40356 Référence CVE CVE-2026-40895 https://www.cve.org/CVERecord?id=CVE-2026-40895 Référence CVE CVE-2026-40988 https://www.cve.org/CVERecord?id=CVE-2026-40988 Référence CVE CVE-2026-41006 https://www.cve.org/CVERecord?id=CVE-2026-41006 Référence CVE CVE-2026-41007 https://www.cve.org/CVERecord?id=CVE-2026-41007 Référence CVE CVE-2026-41035 https://www.cve.org/CVERecord?id=CVE-2026-41035 Référence CVE CVE-2026-4111 https://www.cve.org/CVERecord?id=CVE-2026-4111 Référence CVE CVE-2026-41409 https://www.cve.org/CVERecord?id=CVE-2026-41409 Référence CVE CVE-2026-41635 https://www.cve.org/CVERecord?id=CV

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0788Multiples vulnérabilités dans les produits IBM

d?id=CVE-2026-33671 Référence CVE CVE-2026-33672 https://www.cve.org/CVERecord?id=CVE-2026-33672 Référence CVE CVE-2026-33750 https://www.cve.org/CVERecord?id=CVE-2026-33750 Référence CVE CVE-2026-33814 https://www.cve.org/CVERecord?id=CVE-2026-33814 Référence CVE CVE-2026-34268 https://www.cve.org/CVERecord?id=CVE-2026-34268 Référence CVE CVE-2026-34282 https://www.cve.org/CVERecord?id=CVE-2026-34282 Référence CVE CVE-2026-39821 https://www.cve.org/CVERecord?id=CVE-2026-39821 Référence CVE CVE-2026-39824 https://www.cve.org/CVERecord?id=CVE-2026-39824 Référence CVE CVE-2026-40355 https://www.cve.org/CVERecord?id=CVE-2026-40355 Référence CVE CVE-2026-40356 https://www.cve.org/CVERecord?id=CVE-2026-40356 Référence CVE CVE-2026-40973 https://www.cve.org/CVERecord?id=CVE-2026-40973 Référence CVE CVE-2026-40975 https://www.cve.org/CVERecord?id=CVE-2026-40975 Référence CVE CVE-2026-40977 https://www.cve.org/CVERecord?id=CVE-2026-40977 Référence CVE CVE-2026-41035 https://www.cve.org/CVERecord?id=CVE-2026-41035 Référence CVE CVE-2026-41238 https://www.cve.org/CVERecord?id=CVE-2026-41238 Référence CVE CVE-2026-41239 https://www.cve.org/CVERecord?id=CVE-2026-41239 Référence CVE CVE-2026-41240 https://www.cve.org/CVERecord?id=CVE-2026-41240 Référence CVE CVE-2026-41242 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0571Multiples vulnérabilités dans Microsoft Azure

De multiples vulnérabilités ont été découvertes dans Microsoft Azure. Elles permettent à un attaquant de provoquer un problème de sécurité non spécifié par l'éditeur.

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-022997MITのkerberos 5におけるNULL ポインタデリファレンスに関する脆弱性

MIT Kerberos 5（別名 krb5）バージョン1.22.3より前のバージョンにおいて、/etc/gss/mechにNegoExメカニズムが登録されているシステム上でアプリケーションがgss_accept_sec_context()を呼び出すと、NULLポインタ参照が発生します。認証されていないリモートの攻撃者がこれを引き起こす可能性があり、parse_nego_message関数内でプロセスが終了してしまいます。

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-022996MITのkerberos 5における整数アンダーフローの脆弱性

MIT Kerberos 5（別名 krb5）バージョン1.22.3より前のバージョンにおいて、アプリケーションが /etc/gss/mech に NegoEx メカニズムが登録されているシステムで gss_accept_sec_context() を呼び出すと、整数のアンダーフローとそれに伴う境界外読み取りが発生します。認証されていないリモート攻撃者がこれを引き起こす可能性があり、その結果として parse_message 内でプロセスが終了する恐れがあります。

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Patch available
Affected
Fixed
Action
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 28 Apr 2026 · Last source change 28 Apr 2026, 13:10 UTC · CWE-191 · Integer Underflow (Wrap or Wraparound)

CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2026-25993
Product sourceVendor CSAF · Red Hat Product Security
Remediation sourceVendor CSAF · Red Hat Product Security
CWE sourceCNA
NVD statusNVD enriched

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗
  1. Affected versionsThe structured affected or fixed version information changed.
    Before
    krb5-devel as a component of Red Hat Enterprise Linux 6; krb5-libs as a component of Red Hat Enterprise Linux 6; krb5-pkinit-openssl as a component of Red Hat Enterprise Linux 6; krb5-server as a component of Red Hat Enterprise Linux 6; krb5-server-ldap as a component of Red Hat Enterprise Linux 6; krb5-workstation as a component of Red Hat Enterprise Linux 6; krb5.src as a component of Red Hat Enterprise Linux 6; libkadm5 as a component of Red Hat Enterprise Linux 6; krb5-devel as a component of Red Hat Enterprise Linux 7; krb5-libs as a component of Red Hat Enterprise Linux 7; krb5-pkinit as a component of Red Hat Enterprise Linux 7; krb5-server as a component of Red Hat Enterprise Linux 7; krb5-server-ldap as a component of Red Hat Enterprise Linux 7; krb5-workstation as a component of Red Hat Enterprise Linux 7; krb5.src as a component of Red Hat Enterprise Linux 7; libkadm5 as a component of Red Hat Enterprise Linux 7; openshift/ose-rhel-coreos-8 as a component of Red Hat OpenShift Container Platform 4; openshift/ose-rhel-coreos-9 as a component of Red Hat OpenShift Container Platform 4 · Fixed: krb5-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debuginfo-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debuginfo-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debugsource-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debugsource-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debugsource-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debugsource-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-devel-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-devel-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-devel-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-devel-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-libs-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-libs-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-libs-debuginfo-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-libs-debuginfo-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-pkinit-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-pkinit-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-pkinit-debuginfo-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-pkinit-debuginfo-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-debuginfo-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-debuginfo-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-ldap-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-ldap-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-ldap-debuginfo-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-ldap-debuginfo-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-workstation-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-workstation-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); and 613 more
    After
    krb5-devel as a component of Red Hat Enterprise Linux 6; krb5-libs as a component of Red Hat Enterprise Linux 6; krb5-pkinit-openssl as a component of Red Hat Enterprise Linux 6; krb5-server as a component of Red Hat Enterprise Linux 6; krb5-server-ldap as a component of Red Hat Enterprise Linux 6; krb5-workstation as a component of Red Hat Enterprise Linux 6; krb5.src as a component of Red Hat Enterprise Linux 6; libkadm5 as a component of Red Hat Enterprise Linux 6; krb5-devel as a component of Red Hat Enterprise Linux 7; krb5-libs as a component of Red Hat Enterprise Linux 7; krb5-pkinit as a component of Red Hat Enterprise Linux 7; krb5-server as a component of Red Hat Enterprise Linux 7; krb5-server-ldap as a component of Red Hat Enterprise Linux 7; krb5-workstation as a component of Red Hat Enterprise Linux 7; krb5.src as a component of Red Hat Enterprise Linux 7; libkadm5 as a component of Red Hat Enterprise Linux 7; openshift/ose-rhel-coreos-8 as a component of Red Hat OpenShift Container Platform 4; openshift/ose-rhel-coreos-9 as a component of Red Hat OpenShift Container Platform 4 · Fixed: krb5-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debuginfo-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debuginfo-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debugsource-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debugsource-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debugsource-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debugsource-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-devel-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-devel-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-devel-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-devel-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-libs-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-libs-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-libs-debuginfo-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-libs-debuginfo-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-pkinit-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-pkinit-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-pkinit-debuginfo-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-pkinit-debuginfo-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-debuginfo-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-debuginfo-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-ldap-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-ldap-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-ldap-debuginfo-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-ldap-debuginfo-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-workstation-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-workstation-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); and 614 more
    Red Hat Product Security ↗
  2. Affected versionsThe structured affected or fixed version information changed.
    Before
    krb5-devel as a component of Red Hat Enterprise Linux 6; krb5-libs as a component of Red Hat Enterprise Linux 6; krb5-pkinit-openssl as a component of Red Hat Enterprise Linux 6; krb5-server as a component of Red Hat Enterprise Linux 6; krb5-server-ldap as a component of Red Hat Enterprise Linux 6; krb5-workstation as a component of Red Hat Enterprise Linux 6; krb5.src as a component of Red Hat Enterprise Linux 6; libkadm5 as a component of Red Hat Enterprise Linux 6; krb5-devel as a component of Red Hat Enterprise Linux 7; krb5-libs as a component of Red Hat Enterprise Linux 7; krb5-pkinit as a component of Red Hat Enterprise Linux 7; krb5-server as a component of Red Hat Enterprise Linux 7; krb5-server-ldap as a component of Red Hat Enterprise Linux 7; krb5-workstation as a component of Red Hat Enterprise Linux 7; krb5.src as a component of Red Hat Enterprise Linux 7; libkadm5 as a component of Red Hat Enterprise Linux 7; openshift/ose-rhel-coreos-8 as a component of Red Hat OpenShift Container Platform 4; openshift/ose-rhel-coreos-9 as a component of Red Hat OpenShift Container Platform 4 · Fixed: krb5-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debuginfo-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debuginfo-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debugsource-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debugsource-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debugsource-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debugsource-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-devel-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-devel-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-devel-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-devel-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-libs-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-libs-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-libs-debuginfo-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-libs-debuginfo-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-pkinit-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-pkinit-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-pkinit-debuginfo-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-pkinit-debuginfo-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-debuginfo-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-debuginfo-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-ldap-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-ldap-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-ldap-debuginfo-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-ldap-debuginfo-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-workstation-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-workstation-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); and 609 more
    After
    krb5-devel as a component of Red Hat Enterprise Linux 6; krb5-libs as a component of Red Hat Enterprise Linux 6; krb5-pkinit-openssl as a component of Red Hat Enterprise Linux 6; krb5-server as a component of Red Hat Enterprise Linux 6; krb5-server-ldap as a component of Red Hat Enterprise Linux 6; krb5-workstation as a component of Red Hat Enterprise Linux 6; krb5.src as a component of Red Hat Enterprise Linux 6; libkadm5 as a component of Red Hat Enterprise Linux 6; krb5-devel as a component of Red Hat Enterprise Linux 7; krb5-libs as a component of Red Hat Enterprise Linux 7; krb5-pkinit as a component of Red Hat Enterprise Linux 7; krb5-server as a component of Red Hat Enterprise Linux 7; krb5-server-ldap as a component of Red Hat Enterprise Linux 7; krb5-workstation as a component of Red Hat Enterprise Linux 7; krb5.src as a component of Red Hat Enterprise Linux 7; libkadm5 as a component of Red Hat Enterprise Linux 7; openshift/ose-rhel-coreos-8 as a component of Red Hat OpenShift Container Platform 4; openshift/ose-rhel-coreos-9 as a component of Red Hat OpenShift Container Platform 4 · Fixed: krb5-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debuginfo-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debuginfo-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debugsource-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debugsource-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debugsource-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debugsource-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-devel-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-devel-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-devel-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-devel-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-libs-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-libs-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-libs-debuginfo-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-libs-debuginfo-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-pkinit-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-pkinit-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-pkinit-debuginfo-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-pkinit-debuginfo-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-debuginfo-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-debuginfo-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-ldap-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-ldap-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-ldap-debuginfo-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-ldap-debuginfo-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-workstation-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-workstation-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); and 613 more
    Red Hat Product Security ↗
  3. Affected versionsThe structured affected or fixed version information changed.
    Before
    1.18 < 1.22.3 · Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
    After
    1.18 < 1.22.3 · Fixed: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
    Red Hat Product Security ↗
  4. Affected versionsThe structured affected or fixed version information changed.
    Before
    krb5-devel as a component of Red Hat Enterprise Linux 6; krb5-libs as a component of Red Hat Enterprise Linux 6; krb5-pkinit-openssl as a component of Red Hat Enterprise Linux 6; krb5-server as a component of Red Hat Enterprise Linux 6; krb5-server-ldap as a component of Red Hat Enterprise Linux 6; krb5-workstation as a component of Red Hat Enterprise Linux 6; krb5.src as a component of Red Hat Enterprise Linux 6; libkadm5 as a component of Red Hat Enterprise Linux 6; krb5-devel as a component of Red Hat Enterprise Linux 7; krb5-libs as a component of Red Hat Enterprise Linux 7; krb5-pkinit as a component of Red Hat Enterprise Linux 7; krb5-server as a component of Red Hat Enterprise Linux 7; krb5-server-ldap as a component of Red Hat Enterprise Linux 7; krb5-workstation as a component of Red Hat Enterprise Linux 7; krb5.src as a component of Red Hat Enterprise Linux 7; libkadm5 as a component of Red Hat Enterprise Linux 7; openshift/ose-rhel-coreos-9 as a component of Red Hat OpenShift Container Platform 4 · Fixed: krb5-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debuginfo-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debuginfo-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debugsource-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debugsource-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debugsource-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debugsource-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-devel-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-devel-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-devel-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-devel-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-libs-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-libs-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-libs-debuginfo-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-libs-debuginfo-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-pkinit-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-pkinit-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-pkinit-debuginfo-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-pkinit-debuginfo-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-debuginfo-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-debuginfo-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-ldap-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-ldap-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-ldap-debuginfo-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-ldap-debuginfo-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-workstation-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-workstation-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); and 609 more
    After
    krb5-devel as a component of Red Hat Enterprise Linux 6; krb5-libs as a component of Red Hat Enterprise Linux 6; krb5-pkinit-openssl as a component of Red Hat Enterprise Linux 6; krb5-server as a component of Red Hat Enterprise Linux 6; krb5-server-ldap as a component of Red Hat Enterprise Linux 6; krb5-workstation as a component of Red Hat Enterprise Linux 6; krb5.src as a component of Red Hat Enterprise Linux 6; libkadm5 as a component of Red Hat Enterprise Linux 6; krb5-devel as a component of Red Hat Enterprise Linux 7; krb5-libs as a component of Red Hat Enterprise Linux 7; krb5-pkinit as a component of Red Hat Enterprise Linux 7; krb5-server as a component of Red Hat Enterprise Linux 7; krb5-server-ldap as a component of Red Hat Enterprise Linux 7; krb5-workstation as a component of Red Hat Enterprise Linux 7; krb5.src as a component of Red Hat Enterprise Linux 7; libkadm5 as a component of Red Hat Enterprise Linux 7; openshift/ose-rhel-coreos-8 as a component of Red Hat OpenShift Container Platform 4; openshift/ose-rhel-coreos-9 as a component of Red Hat OpenShift Container Platform 4 · Fixed: krb5-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debuginfo-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debuginfo-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debugsource-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debugsource-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debugsource-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debugsource-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-devel-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-devel-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-devel-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-devel-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-libs-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-libs-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-libs-debuginfo-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-libs-debuginfo-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-pkinit-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-pkinit-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-pkinit-debuginfo-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-pkinit-debuginfo-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-debuginfo-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-debuginfo-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-ldap-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-ldap-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-ldap-debuginfo-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-ldap-debuginfo-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-workstation-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-workstation-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); and 609 more
    Red Hat Product Security ↗
  5. Affected versionsThe structured affected or fixed version information changed.
    Before
    krb5-devel as a component of Red Hat Enterprise Linux 6; krb5-libs as a component of Red Hat Enterprise Linux 6; krb5-pkinit-openssl as a component of Red Hat Enterprise Linux 6; krb5-server as a component of Red Hat Enterprise Linux 6; krb5-server-ldap as a component of Red Hat Enterprise Linux 6; krb5-workstation as a component of Red Hat Enterprise Linux 6; krb5.src as a component of Red Hat Enterprise Linux 6; libkadm5 as a component of Red Hat Enterprise Linux 6; krb5-devel as a component of Red Hat Enterprise Linux 7; krb5-libs as a component of Red Hat Enterprise Linux 7; krb5-pkinit as a component of Red Hat Enterprise Linux 7; krb5-server as a component of Red Hat Enterprise Linux 7; krb5-server-ldap as a component of Red Hat Enterprise Linux 7; krb5-workstation as a component of Red Hat Enterprise Linux 7; krb5.src as a component of Red Hat Enterprise Linux 7; libkadm5 as a component of Red Hat Enterprise Linux 7; openshift/ose-rhel-coreos-9 as a component of Red Hat OpenShift Container Platform 4 · Fixed: krb5-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debuginfo-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debuginfo-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debugsource-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debugsource-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debugsource-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debugsource-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-devel-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-devel-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-devel-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-devel-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-libs-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-libs-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-libs-debuginfo-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-libs-debuginfo-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-pkinit-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-pkinit-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-pkinit-debuginfo-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-pkinit-debuginfo-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-debuginfo-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-debuginfo-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-ldap-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-ldap-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-ldap-debuginfo-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-ldap-debuginfo-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-workstation-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-workstation-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); and 606 more
    After
    krb5-devel as a component of Red Hat Enterprise Linux 6; krb5-libs as a component of Red Hat Enterprise Linux 6; krb5-pkinit-openssl as a component of Red Hat Enterprise Linux 6; krb5-server as a component of Red Hat Enterprise Linux 6; krb5-server-ldap as a component of Red Hat Enterprise Linux 6; krb5-workstation as a component of Red Hat Enterprise Linux 6; krb5.src as a component of Red Hat Enterprise Linux 6; libkadm5 as a component of Red Hat Enterprise Linux 6; krb5-devel as a component of Red Hat Enterprise Linux 7; krb5-libs as a component of Red Hat Enterprise Linux 7; krb5-pkinit as a component of Red Hat Enterprise Linux 7; krb5-server as a component of Red Hat Enterprise Linux 7; krb5-server-ldap as a component of Red Hat Enterprise Linux 7; krb5-workstation as a component of Red Hat Enterprise Linux 7; krb5.src as a component of Red Hat Enterprise Linux 7; libkadm5 as a component of Red Hat Enterprise Linux 7; openshift/ose-rhel-coreos-9 as a component of Red Hat OpenShift Container Platform 4 · Fixed: krb5-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debuginfo-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debuginfo-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debugsource-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debugsource-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debugsource-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-debugsource-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-devel-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-devel-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-devel-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-devel-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-libs-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-libs-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-libs-debuginfo-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-libs-debuginfo-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-pkinit-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-pkinit-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-pkinit-debuginfo-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-pkinit-debuginfo-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-debuginfo-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-debuginfo-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-ldap-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-ldap-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-ldap-debuginfo-0:1.21.3-10.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-server-ldap-debuginfo-0:1.21.3-10.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-workstation-debuginfo-0:1.21.3-10.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); krb5-workstation-debuginfo-0:1.21.3-10.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); and 609 more
    Red Hat Product Security ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
Fixed release recorded from official guidance
Fixed release recorded from official guidance
Fixed release recorded from official guidance
ENISA EUVD · EUVD-2026-25993↗Red Hat Product Security security advisory↗CVE authority or vendor reference↗Public exploit reference↗Patch or update reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2026-40356 · cve.blacktree.nl