BlackTreeCVE Intelligence
← Back to the CVE catalogue
Full vulnerability report · 2026
CVE-2025-49506High confidence

Apache Portable Runtime Utility: apr_password_validate() vulnerable to timing attack

Apache Software Foundation · Apache Portable Runtime Utility

7.5HighCVSS 3.1
Recommended action
Within 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityHighOperational priority:High, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • The selected CVSS metric records a network-reachable, unauthenticated path with no user interaction.
  • EPSS is 0.38% 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.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs Apache Software Foundation Apache Portable Runtime Utility 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

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

8 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
Alpine v3.23v3.23 · mainapr-utilVendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.1.6.4-r0Alpine Security Database ↗Source updated 3 Oct 2026
Alpine v3.22v3.22 · mainapr-utilVendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.1.6.4-r0Alpine Security Database ↗Source updated 3 Oct 2026
Alpine v3.21v3.21 · mainapr-utilVendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.1.6.4-r0Alpine Security Database ↗Source updated 3 Oct 2026
Debian trixietrixie · sourceapr-utilVendor fix publishedDebian records a fixed source-package version for this release.1.6.3-3+deb13u1Debian Security Tracker ↗Source updated 5 Oct 2026
Debian bookwormbookworm · sourceapr-utilVendor fix publishedDebian records a fixed source-package version for this release.1.6.3-1+deb12u1Debian Security Tracker ↗Source updated 5 Oct 2026
Debian forkyforky · sourceapr-utilVendor fix publishedDebian records a fixed source-package version for this release.1.6.4-1Debian Security Tracker ↗Source updated 5 Oct 2026
Debian sidsid · sourceapr-utilVendor fix publishedDebian records a fixed source-package version for this release.1.6.4-1Debian Security Tracker ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archiveapr-utilVendor fix publishedCanonical reports that a fixed source package version has been published. Repository candidate availability is not checked by BlackTree.1.6.3-1.1ubuntu7.1Canonical Ubuntu Security ↗Source updated 5 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.

2 current
CVE-2025-49506 · CSAF 2.0 · revision 11 · interimSUSE Product Security TeamCVE-2025-49506
91 known affected

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

  • apr-util as component of SUSE Linux Enterprise High Performance Computing 15 SP1
  • apr-util-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP1
  • libapr-util1 as component of SUSE Linux Enterprise High Performance Computing 15 SP1
  • libapr-util1-dbd-mysql as component of SUSE Linux Enterprise High Performance Computing 15 SP1
  • libapr-util1-dbd-pgsql as component of SUSE Linux Enterprise High Performance Computing 15 SP1
  • libapr-util1-dbd-sqlite3 as component of SUSE Linux Enterprise High Performance Computing 15 SP1
  • apr-util as component of SUSE Linux Enterprise High Performance Computing 15 SP2
  • apr-util-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP2
  • libapr-util1 as component of SUSE Linux Enterprise High Performance Computing 15 SP2
  • libapr-util1-dbd-mysql as component of SUSE Linux Enterprise High Performance Computing 15 SP2
  • libapr-util1-dbd-pgsql as component of SUSE Linux Enterprise High Performance Computing 15 SP2
  • libapr-util1-dbd-sqlite3 as component of SUSE Linux Enterprise High Performance Computing 15 SP2
Summary
APR-util versions 1.6.3 (and earlier) function apr_password_validate() was not constant-time with regards to hashes or passwords comparisons, potentially leaking their content via a side channel timing attack particularly on platforms without crypt() such as Windows, BeOS, NetWare, or Android. Users are recommended to upgrade to version 1.6.4, which fixes this issue.
Remediation
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
CVE-2025-49506 · CSAF 2.0 · revision 3 · finalRed Hat Product Securityapr-util: Apache Portable Runtime Utility: Information disclosure via timing attack in password validation
18 known affected

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

  • apr-util as a component of Red Hat Enterprise Linux 6
  • apr-util-devel as a component of Red Hat Enterprise Linux 6
  • apr-util-ldap as a component of Red Hat Enterprise Linux 6
  • apr-util-mysql as a component of Red Hat Enterprise Linux 6
  • apr-util-odbc as a component of Red Hat Enterprise Linux 6
  • apr-util-pgsql as a component of Red Hat Enterprise Linux 6
  • apr-util-sqlite as a component of Red Hat Enterprise Linux 6
  • apr-util.src as a component of Red Hat Enterprise Linux 6
  • apr-util as a component of Red Hat Enterprise Linux 7
  • apr-util-devel as a component of Red Hat Enterprise Linux 7
  • apr-util-ldap as a component of Red Hat Enterprise Linux 7
  • apr-util-mysql as a component of Red Hat Enterprise Linux 7
Summary
A flaw was found in Apache Portable Runtime Utility (apr-util). The `apr_password_validate()` function does not perform constant-time comparisons for hashes or passwords. This vulnerability allows a remote attacker to conduct a timing attack, particularly on platforms without `crypt()` such as Windows, BeOS, NetWare, or Android. By observing the time differences in comparisons, an attacker could potentially deduce the content of sensitive information like password hashes.
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-2025-210642

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

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
01

What, why and how

APR-util versions 1.6.3 (and earlier) function apr_password_validate() was not constant-time with regards to hashes or passwords comparisons, potentially leaking their content via a side channel timing attack particularly on platforms without crypt() such as  Windows, BeOS, NetWare, or Android. Users are recommended to upgrade to version 1.6.4, which fixes this issue.

What

APR-util versions 1.6.3 (and earlier) function apr_password_validate() was not constant-time with regards to hashes or passwords comparisons, potentially leaking their content via a side channel timing attack particularly on platforms without crypt() such as  Windows, BeOS, NetWare, or Android. Users are recommended to upgrade to version 1.6.4, which fixes this issue.

Why

Two separate operations in a product require different amounts of time to complete, in a way that is observable to an actor and reveals security-relevant information about the state of the product, such as whether a particular operation was successful or not.

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

APR-util versions 1.6.3 (and earlier) function apr_password_validate() was not constant-time with regards to hashes or passwords comparisons, potentially leaking their content via a side channel timing attack particularly on platforms without crypt() such as  Windows, BeOS, NetWare, or Android. Users are recommended to upgrade to version 1.6.4, which fixes this issue.

Why

Two separate operations in a product require different amounts of time to complete, in a way that is observable to an actor and reveals security-relevant information about the state of the product, such as whether a particular operation was successful or not.

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.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
a network path → Observable Timing Discrepancy → 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
Low: no specialised conditions are recorded
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-208 ↗

CWE-208: Observable Timing Discrepancy. Two separate operations in a product require different amounts of time to complete, in a way that is observable to an actor and reveals security-relevant information about the state of the product, such as whether a particular operation was successful or not.

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:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.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.CHighConfidentiality impact: A successful attack can cause a major loss.INoneIntegrity impact: No direct loss is represented by this metric.ANoneAvailability impact: No direct loss is represented by this metric.
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-208
A

Official authority intelligence

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

BSI · German · WID-SEC-2026-2697Apache Portable Runtime (APR): Mehrere Schwachstellen

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Apache Portable Runtime (APR) ausnutzen, um SQL-Injection durchzuführen, vertrauliche Informationen offenzulegen oder einen Denial-of-Service-Zustand auszulösen.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20260812Security Bulletin 12 Aug 2026

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 12 Aug 2026, published on 12 August 2026. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-027166Apache Software FoundationのAPR-utilにおけるタイミングの違いに起因する情報漏えいに関する脆弱性

APR-util バージョン 1.6.3（およびそれ以前）の関数 apr_password_validate() は、ハッシュやパスワードの比較に関して定数時間ではなく、特に Windows、BeOS、NetWare、Android などの crypt() を持たないプラットフォーム上でタイミング攻撃によるサイドチャネルを介して内容が漏洩する可能性がありました。このため、ユーザーはこの問題を修正したバージョン 1.6.4 へアップグレードすることを推奨します。

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
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
Action
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
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 6 Aug 2026 · Last source change 6 Aug 2026, 21:56 UTC · CWE-208 · Observable Timing Discrepancy

CVE recordCVE.org · 5.2
CVSS sourceCISA ADP
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-2025-210642
Product sourceVendor CSAF · SUSE Product Security Team
Remediation sourceVendor CSAF · SUSE Product Security Team
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
    Apache Portable Runtime Utility: 1.2.0 ≤ 1.6.3 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    After
    Apache Portable Runtime Utility: 1.2.0 ≤ 1.6.3 · 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 ↗
  2. Remediation statusRemediation status changed from Awaiting fix to Patch available.
    Before
    Awaiting fix
    After
    Patch available
    Red Hat Product Security ↗
  3. Affected versionsThe structured affected or fixed version information changed.
    Before
    apr-util as a component of Red Hat Enterprise Linux 6; apr-util-devel as a component of Red Hat Enterprise Linux 6; apr-util-ldap as a component of Red Hat Enterprise Linux 6; apr-util-mysql as a component of Red Hat Enterprise Linux 6; apr-util-odbc as a component of Red Hat Enterprise Linux 6; apr-util-pgsql as a component of Red Hat Enterprise Linux 6; apr-util-sqlite as a component of Red Hat Enterprise Linux 6; apr-util.src as a component of Red Hat Enterprise Linux 6; apr-util as a component of Red Hat Enterprise Linux 7; apr-util-devel as a component of Red Hat Enterprise Linux 7; apr-util-ldap as a component of Red Hat Enterprise Linux 7; apr-util-mysql as a component of Red Hat Enterprise Linux 7; apr-util-nss as a component of Red Hat Enterprise Linux 7; apr-util-odbc as a component of Red Hat Enterprise Linux 7; apr-util-openssl as a component of Red Hat Enterprise Linux 7; apr-util-pgsql as a component of Red Hat Enterprise Linux 7; apr-util-sqlite as a component of Red Hat Enterprise Linux 7; apr-util.src as a component of Red Hat Enterprise Linux 7; apr-util as a component of Red Hat Enterprise Linux 8; apr-util-bdb as a component of Red Hat Enterprise Linux 8; apr-util-devel as a component of Red Hat Enterprise Linux 8; apr-util-ldap as a component of Red Hat Enterprise Linux 8; apr-util-mysql as a component of Red Hat Enterprise Linux 8; apr-util-odbc as a component of Red Hat Enterprise Linux 8; apr-util-openssl as a component of Red Hat Enterprise Linux 8; apr-util-pgsql as a component of Red Hat Enterprise Linux 8; apr-util-sqlite as a component of Red Hat Enterprise Linux 8; apr-util.src as a component of Red Hat Enterprise Linux 8 · Fixed: apr-util-0:1.6.3-23.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-0:1.6.3-23.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-0:1.6.3-23.el10_2.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-0:1.6.3-23.el10_2.1.src as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-0:1.6.3-23.el10_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-debuginfo-0:1.6.3-23.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-debuginfo-0:1.6.3-23.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-debuginfo-0:1.6.3-23.el10_2.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-debuginfo-0:1.6.3-23.el10_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-debugsource-0:1.6.3-23.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-debugsource-0:1.6.3-23.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-debugsource-0:1.6.3-23.el10_2.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-debugsource-0:1.6.3-23.el10_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-devel-0:1.6.3-23.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-devel-0:1.6.3-23.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-devel-0:1.6.3-23.el10_2.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-devel-0:1.6.3-23.el10_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-ldap-0:1.6.3-23.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-ldap-0:1.6.3-23.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-ldap-0:1.6.3-23.el10_2.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-ldap-0:1.6.3-23.el10_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-ldap-debuginfo-0:1.6.3-23.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-ldap-debuginfo-0:1.6.3-23.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-ldap-debuginfo-0:1.6.3-23.el10_2.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-ldap-debuginfo-0:1.6.3-23.el10_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-lmdb-0:1.6.3-23.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-lmdb-0:1.6.3-23.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-lmdb-0:1.6.3-23.el10_2.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-lmdb-0:1.6.3-23.el10_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-lmdb-debuginfo-0:1.6.3-23.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); and 131 more
    After
    apr-util as a component of Red Hat Enterprise Linux 6; apr-util-devel as a component of Red Hat Enterprise Linux 6; apr-util-ldap as a component of Red Hat Enterprise Linux 6; apr-util-mysql as a component of Red Hat Enterprise Linux 6; apr-util-odbc as a component of Red Hat Enterprise Linux 6; apr-util-pgsql as a component of Red Hat Enterprise Linux 6; apr-util-sqlite as a component of Red Hat Enterprise Linux 6; apr-util.src as a component of Red Hat Enterprise Linux 6; apr-util as a component of Red Hat Enterprise Linux 7; apr-util-devel as a component of Red Hat Enterprise Linux 7; apr-util-ldap as a component of Red Hat Enterprise Linux 7; apr-util-mysql as a component of Red Hat Enterprise Linux 7; apr-util-nss as a component of Red Hat Enterprise Linux 7; apr-util-odbc as a component of Red Hat Enterprise Linux 7; apr-util-openssl as a component of Red Hat Enterprise Linux 7; apr-util-pgsql as a component of Red Hat Enterprise Linux 7; apr-util-sqlite as a component of Red Hat Enterprise Linux 7; apr-util.src as a component of Red Hat Enterprise Linux 7 · Fixed: apr-util-0:1.6.3-23.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-0:1.6.3-23.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-0:1.6.3-23.el10_2.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-0:1.6.3-23.el10_2.1.src as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-0:1.6.3-23.el10_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-debuginfo-0:1.6.3-23.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-debuginfo-0:1.6.3-23.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-debuginfo-0:1.6.3-23.el10_2.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-debuginfo-0:1.6.3-23.el10_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-debugsource-0:1.6.3-23.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-debugsource-0:1.6.3-23.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-debugsource-0:1.6.3-23.el10_2.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-debugsource-0:1.6.3-23.el10_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-devel-0:1.6.3-23.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-devel-0:1.6.3-23.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-devel-0:1.6.3-23.el10_2.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-devel-0:1.6.3-23.el10_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-ldap-0:1.6.3-23.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-ldap-0:1.6.3-23.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-ldap-0:1.6.3-23.el10_2.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-ldap-0:1.6.3-23.el10_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-ldap-debuginfo-0:1.6.3-23.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-ldap-debuginfo-0:1.6.3-23.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-ldap-debuginfo-0:1.6.3-23.el10_2.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-ldap-debuginfo-0:1.6.3-23.el10_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-lmdb-0:1.6.3-23.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-lmdb-0:1.6.3-23.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-lmdb-0:1.6.3-23.el10_2.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-lmdb-0:1.6.3-23.el10_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-lmdb-debuginfo-0:1.6.3-23.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); and 217 more
    Red Hat Product Security ↗
  4. Affected versionsThe structured affected or fixed version information changed.
    Before
    1.2.0 ≤ 1.6.3 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    After
    1.2.0 ≤ 1.6.3 · 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 ↗
  5. Remediation statusRemediation status changed from Awaiting fix to Patch available.
    Before
    Awaiting fix
    After
    Patch available
    Red Hat Product Security ↗
  6. Vendor guidanceAuthoritative vendor guidance changed from remediation: access.redhat.com/CVE-2025-49506 to remediation: access.redhat.com/CVE-2025-49506.
    Before
    remediation: access.redhat.com/CVE-2025-49506
    After
    remediation: access.redhat.com/CVE-2025-49506
    Red Hat Product Security ↗
  7. Affected versionsThe structured affected or fixed version information changed.
    Before
    apr-util-devel as a component of Red Hat Enterprise Linux 10; apr-util-ldap as a component of Red Hat Enterprise Linux 10; apr-util-lmdb as a component of Red Hat Enterprise Linux 10; apr-util-mysql as a component of Red Hat Enterprise Linux 10; apr-util-odbc as a component of Red Hat Enterprise Linux 10; apr-util-openssl as a component of Red Hat Enterprise Linux 10; apr-util-pgsql as a component of Red Hat Enterprise Linux 10; apr-util-sqlite as a component of Red Hat Enterprise Linux 10; apr-util.src as a component of Red Hat Enterprise Linux 10; apr-util as a component of Red Hat Enterprise Linux 6; apr-util-devel as a component of Red Hat Enterprise Linux 6; apr-util-ldap as a component of Red Hat Enterprise Linux 6; apr-util-mysql as a component of Red Hat Enterprise Linux 6; apr-util-odbc as a component of Red Hat Enterprise Linux 6; apr-util-pgsql as a component of Red Hat Enterprise Linux 6; apr-util-sqlite as a component of Red Hat Enterprise Linux 6; apr-util.src as a component of Red Hat Enterprise Linux 6; apr-util as a component of Red Hat Enterprise Linux 7; apr-util-devel as a component of Red Hat Enterprise Linux 7; apr-util-ldap as a component of Red Hat Enterprise Linux 7; apr-util-mysql as a component of Red Hat Enterprise Linux 7; apr-util-nss as a component of Red Hat Enterprise Linux 7; apr-util-odbc as a component of Red Hat Enterprise Linux 7; apr-util-openssl as a component of Red Hat Enterprise Linux 7; apr-util-pgsql as a component of Red Hat Enterprise Linux 7; apr-util-sqlite as a component of Red Hat Enterprise Linux 7; apr-util.src as a component of Red Hat Enterprise Linux 7; apr-util as a component of Red Hat Enterprise Linux 8; apr-util-bdb as a component of Red Hat Enterprise Linux 8; apr-util-devel as a component of Red Hat Enterprise Linux 8; and 17 more · Fixed: apr-util-main@aarch64 as a component of Red Hat Hardened Images; apr-util-main@src as a component of Red Hat Hardened Images; apr-util-main@x86_64 as a component of Red Hat Hardened Images
    After
    apr-util as a component of Red Hat Enterprise Linux 6; apr-util-devel as a component of Red Hat Enterprise Linux 6; apr-util-ldap as a component of Red Hat Enterprise Linux 6; apr-util-mysql as a component of Red Hat Enterprise Linux 6; apr-util-odbc as a component of Red Hat Enterprise Linux 6; apr-util-pgsql as a component of Red Hat Enterprise Linux 6; apr-util-sqlite as a component of Red Hat Enterprise Linux 6; apr-util.src as a component of Red Hat Enterprise Linux 6; apr-util as a component of Red Hat Enterprise Linux 7; apr-util-devel as a component of Red Hat Enterprise Linux 7; apr-util-ldap as a component of Red Hat Enterprise Linux 7; apr-util-mysql as a component of Red Hat Enterprise Linux 7; apr-util-nss as a component of Red Hat Enterprise Linux 7; apr-util-odbc as a component of Red Hat Enterprise Linux 7; apr-util-openssl as a component of Red Hat Enterprise Linux 7; apr-util-pgsql as a component of Red Hat Enterprise Linux 7; apr-util-sqlite as a component of Red Hat Enterprise Linux 7; apr-util.src as a component of Red Hat Enterprise Linux 7; apr-util as a component of Red Hat Enterprise Linux 8; apr-util-bdb as a component of Red Hat Enterprise Linux 8; apr-util-devel as a component of Red Hat Enterprise Linux 8; apr-util-ldap as a component of Red Hat Enterprise Linux 8; apr-util-mysql as a component of Red Hat Enterprise Linux 8; apr-util-odbc as a component of Red Hat Enterprise Linux 8; apr-util-openssl as a component of Red Hat Enterprise Linux 8; apr-util-pgsql as a component of Red Hat Enterprise Linux 8; apr-util-sqlite as a component of Red Hat Enterprise Linux 8; apr-util.src as a component of Red Hat Enterprise Linux 8 · Fixed: apr-util-0:1.6.3-23.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-0:1.6.3-23.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-0:1.6.3-23.el10_2.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-0:1.6.3-23.el10_2.1.src as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-0:1.6.3-23.el10_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-debuginfo-0:1.6.3-23.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-debuginfo-0:1.6.3-23.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-debuginfo-0:1.6.3-23.el10_2.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-debuginfo-0:1.6.3-23.el10_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-debugsource-0:1.6.3-23.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-debugsource-0:1.6.3-23.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-debugsource-0:1.6.3-23.el10_2.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-debugsource-0:1.6.3-23.el10_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-devel-0:1.6.3-23.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-devel-0:1.6.3-23.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-devel-0:1.6.3-23.el10_2.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-devel-0:1.6.3-23.el10_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-ldap-0:1.6.3-23.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-ldap-0:1.6.3-23.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-ldap-0:1.6.3-23.el10_2.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-ldap-0:1.6.3-23.el10_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-ldap-debuginfo-0:1.6.3-23.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-ldap-debuginfo-0:1.6.3-23.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-ldap-debuginfo-0:1.6.3-23.el10_2.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-ldap-debuginfo-0:1.6.3-23.el10_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-lmdb-0:1.6.3-23.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-lmdb-0:1.6.3-23.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-lmdb-0:1.6.3-23.el10_2.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-lmdb-0:1.6.3-23.el10_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); apr-util-lmdb-debuginfo-0:1.6.3-23.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); and 131 more
    Red Hat Product Security ↗
  8. Affected versionsThe structured affected or fixed version information changed.
    Before
    Apache Portable Runtime Utility: 1.2.0 ≤ 1.6.3 · 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
    After
    Apache Portable Runtime Utility: 1.2.0 ≤ 1.6.3 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    CNA ↗
  9. Vendor guidanceAuthoritative vendor guidance changed: removed remediation: access.redhat.com/CVE-2025-49506.
    Before
    remediation: access.redhat.com/CVE-2025-49506 · vendor advisory: lists.apache.org/2v8o3bj9pb7lfcr57bdnjg9xfkj04mg5
    After
    vendor advisory: lists.apache.org/2v8o3bj9pb7lfcr57bdnjg9xfkj04mg5
    security@apache.org ↗
  10. Affected versionsThe structured affected or fixed version information changed.
    Before
    1.2.0 ≤ 1.6.3 · 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
    After
    Apache Portable Runtime Utility: 1.2.0 ≤ 1.6.3 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    CNA ↗
  11. Remediation statusRemediation status changed from Patch available to Awaiting fix.
    Before
    Patch available
    After
    Awaiting fix
    security@apache.org ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release recorded from official guidance
ENISA EUVD · EUVD-2025-210642↗Vendor CSAF · SUSE Product Security Team↗Red Hat Product Security security advisory↗CVE authority or vendor 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-2025-49506 · cve.blacktree.nl