BlackTreeCVE Intelligence
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Full vulnerability report · 2026
CVE-2026-15055High confidence

PKCS#8 / PBES2 decryptors honour unbounded KDF cost from input

Legion of the Bouncy Castle Inc. · BC-JAVA

5.3MediumCVSS 4.0
Recommended action
Patch only the product branches with a verified fix

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority. Verified remediation exists for at least one product or source, but 35 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityMediumOperational priority:Medium, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • EPSS is 0.34% 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 Legion of the Bouncy Castle Inc. BC-JAVA 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: As exposure requiresRemediation target: Within 365 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.

Cross-source reconciliation

Remediation availability differs by product scope

Verified remediation exists for at least one product or source, but 35 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

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
Package result overrides the generic status

BlackTree has verified remediation for at least one product or source, but the relevant distribution still reports no fixed package for 2 affected package states shown here. Treat those rows as affected with no fix until that distribution publishes a fixed version.

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 · sourcebouncycastleAffected, no fix publishedDebian currently tracks this release as open.Not published in this feedDebian Security Tracker ↗Source updated 5 Oct 2026
Debian bookwormbookworm · sourcebouncycastleAffected, no fix publishedDebian currently tracks this release as open.Not published in this feedDebian Security Tracker ↗Source updated 5 Oct 2026
Debian forkyforky · sourcebouncycastleVendor fix publishedDebian records a fixed source-package version for this release.1.86-1Debian Security Tracker ↗Source updated 5 Oct 2026
Debian sidsid · sourcebouncycastleVendor fix publishedDebian records a fixed source-package version for this release.1.86-1Debian Security Tracker ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · esm-appsbouncycastleUnder evaluationCanonical reports that the package might be affected and still needs evaluation or fixing.Not published in this feedCanonical 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.

1 current
CVE-2026-15055 · CSAF 2.0 · revision 3 · finalRed Hat Product Securityorg.bouncycastle/bcprov-jdk15on: org.bouncycastle/bcpkix-jdk15on: org.bouncycastle/bc-fips: org.bouncycastle/bcpkix-fips: Bouncy Castle for Java: Denial of service due to unbounded KDF cost in PKCS#8 / PBES2 decryptors
33 known affected

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

  • bcprov-jdk15on as a component of Red Hat AMQ Clients
  • ceph-base as a component of Red Hat Ceph Storage 9
  • ceph-common as a component of Red Hat Ceph Storage 9
  • ceph-fuse as a component of Red Hat Ceph Storage 9
  • ceph-immutable-object-cache as a component of Red Hat Ceph Storage 9
  • ceph-mib as a component of Red Hat Ceph Storage 9
  • ceph-resource-agents as a component of Red Hat Ceph Storage 9
  • ceph-selinux as a component of Red Hat Ceph Storage 9
  • ceph.src as a component of Red Hat Ceph Storage 9
  • cephadm as a component of Red Hat Ceph Storage 9
  • cephfs-top as a component of Red Hat Ceph Storage 9
  • libcephfs-devel as a component of Red Hat Ceph Storage 9
Summary
A flaw was found in Bouncy Castle for Java. An attacker could exploit this vulnerability by providing a specially crafted input to the PKCS#8 / PBES2 decryptors. This input could specify an excessively high Key Derivation Function (KDF) cost, causing the decryptor to consume significant computational resources. This resource exhaustion can lead to a denial of service (DoS), making the affected system unresponsive or unavailable.
Remediation
Red Hat is not aware of a mitigation for this flaw other than updating the affected Bouncy Castle component to a fixed version (bc-java 1.85, LTS 2.73.12, or BC-FJA bcpkix-fips 1.0.12/2.0.12/2.1.12) once available for the affected product.
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-2026-52019

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 actionPatch only the product branches with a verified fix

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority. Verified remediation exists for at least one product or source, but 35 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
01

What, why and how

In Bouncy Castle for Java before 1.85, PKCS#8 / PBES2 decryptors honour unbounded KDF cost from input. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bcpkix-fips 1.0.12 (1.0.X series), 2.0.12 (2.0.X series) and 2.1.12 (2.1.X series).

What

In Bouncy Castle for Java before 1.85, PKCS#8 / PBES2 decryptors honour unbounded KDF cost from input. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bcpkix-fips 1.0.12 (1.0.X series), 2.0.12 (2.0.X series) and 2.1.12 (2.1.X series).

Why

The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

How

An attacker operating through a network path may attempt exploitation when the stated preconditions are met. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

In Bouncy Castle for Java before 1.85, PKCS#8 / PBES2 decryptors honour unbounded KDF cost from input. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bcpkix-fips 1.0.12 (1.0.X series), 2.0.12 (2.0.X series) and 2.1.12 (2.1.X series).

Why

The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

How

An attacker operating through a network path may attempt exploitation when the stated preconditions are met. 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 → Allocation of Resources Without Limits or Throttling → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
Passive interaction required
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Not a CVSS 4.0 base metric
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-770 ↗

CWE-770: Allocation of Resources Without Limits or Throttling. The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/U:Amber

Common Vulnerability Scoring System 4.0: 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.ATNoneAttack requirements: No additional deployment or execution condition is required.PRNonePrivileges required: The attacker does not need an account or existing privileges.UIPassiveUser interaction: A user must unknowingly interact with the vulnerable system.VCNoneVulnerable-system confidentiality: No direct loss is represented by this metric.VINoneVulnerable-system integrity: No direct loss is represented by this metric.VALowVulnerable-system availability: A successful attack can cause a limited loss.SCNoneSubsequent-system confidentiality: No direct loss is represented by this metric.SINoneSubsequent-system integrity: No direct loss is represented by this metric.SANoneSubsequent-system availability: 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-770
A

Official authority intelligence

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

BSI · German · WID-SEC-2026-3595IBM QRadar SIEM: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in IBM QRadar SIEM ausnutzen, um beliebigen Programmcode auszuführen, um seine Privilegien zu erhöhen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, um Dateien zu manipulieren, um einen Cross-Site Scripting Angriff durchzuführen und um Sicherheitsvorkehrungen zu umgehen.

Official advisory ↗
BSI · German · WID-SEC-2026-2958IBM License Metric Tool: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in IBM License Metric Tool ausnutzen, um beliebigen Programmcode auszuführen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, um Dateien zu manipulieren und um Sicherheitsvorkehrungen zu umgehen.

Official advisory ↗
BSI · German · WID-SEC-2026-2622Bouncy Castle: Mehrere Schwachstellen

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Bouncy Castle ausnutzen, um Sicherheitsvorkehrungen zu umgehen, Daten zu manipulieren, sensible Informationen offenzulegen oder einen Denial-of-Service-Zustand auszulösen.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20260805Security Bulletin 5 Aug 2026

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 5 Aug 2026, published on 5 August 2026. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1256Multiples vulnérabilités dans les produits IBM

d?id=CVE-2026-12860 Référence CVE CVE-2026-13149 https://www.cve.org/CVERecord?id=CVE-2026-13149 Référence CVE CVE-2026-13204 https://www.cve.org/CVERecord?id=CVE-2026-13204 Référence CVE CVE-2026-13321 https://www.cve.org/CVERecord?id=CVE-2026-13321 Référence CVE CVE-2026-13506 https://www.cve.org/CVERecord?id=CVE-2026-13506 Référence CVE CVE-2026-13586 https://www.cve.org/CVERecord?id=CVE-2026-13586 Référence CVE CVE-2026-13676 https://www.cve.org/CVERecord?id=CVE-2026-13676 Référence CVE CVE-2026-14257 https://www.cve.org/CVERecord?id=CVE-2026-14257 Référence CVE CVE-2026-14682 https://www.cve.org/CVERecord?id=CVE-2026-14682 Référence CVE CVE-2026-15055 https://www.cve.org/CVERecord?id=CVE-2026-15055 Référence CVE CVE-2026-15588 https://www.cve.org/CVERecord?id=CVE-2026-15588 Référence CVE CVE-2026-15603 https://www.cve.org/CVERecord?id=CVE-2026-15603 Référence CVE CVE-2026-15816 https://www.cve.org/CVERecord?id=CVE-2026-15816 Référence CVE CVE-2026-16221 https://www.cve.org/CVERecord?id=CVE-2026-16221 Référence CVE CVE-2026-16313 https://www.cve.org/CVERecord?id=CVE-2026-16313 Référence CVE CVE-2026-16440 https://www.cve.org/CVERecord?id=CVE-2026-16440 Référence CVE CVE-2026-16524 https://www.cve.org/CVERecord?id=CVE-2026-16524 Référence CVE CVE-2026-16526 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1233Multiples vulnérabilités dans les produits IBM

d?id=CVE-2026-13586 Référence CVE CVE-2026-13676 https://www.cve.org/CVERecord?id=CVE-2026-13676 Référence CVE CVE-2026-13697 https://www.cve.org/CVERecord?id=CVE-2026-13697 Référence CVE CVE-2026-14257 https://www.cve.org/CVERecord?id=CVE-2026-14257 Référence CVE CVE-2026-14620 https://www.cve.org/CVERecord?id=CVE-2026-14620 Référence CVE CVE-2026-14631 https://www.cve.org/CVERecord?id=CVE-2026-14631 Référence CVE CVE-2026-14643 https://www.cve.org/CVERecord?id=CVE-2026-14643 Référence CVE CVE-2026-14682 https://www.cve.org/CVERecord?id=CVE-2026-14682 Référence CVE CVE-2026-14802 https://www.cve.org/CVERecord?id=CVE-2026-14802 Référence CVE CVE-2026-15055 https://www.cve.org/CVERecord?id=CVE-2026-15055 Référence CVE CVE-2026-15157 https://www.cve.org/CVERecord?id=CVE-2026-15157 Référence CVE CVE-2026-1527 https://www.cve.org/CVERecord?id=CVE-2026-1527 Référence CVE CVE-2026-16221 https://www.cve.org/CVERecord?id=CVE-2026-16221 Référence CVE CVE-2026-16243 https://www.cve.org/CVERecord?id=CVE-2026-16243 Référence CVE CVE-2026-16439 https://www.cve.org/CVERecord?id=CVE-2026-16439 Référence CVE CVE-2026-16440 https://www.cve.org/CVERecord?id=CVE-2026-16440 Référence CVE CVE-2026-16441 https://www.cve.org/CVERecord?id=CVE-2026-16441 Référence CVE CVE-2026-16728 https://www.cve.org/CVERecord?id=CV

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1165Multiples vulnérabilités dans les produits IBM

d?id=CVE-2026-14529 Référence CVE CVE-2026-14682 https://www.cve.org/CVERecord?id=CVE-2026-14682 Référence CVE CVE-2026-14683 https://www.cve.org/CVERecord?id=CVE-2026-14683 Référence CVE CVE-2026-14684 https://www.cve.org/CVERecord?id=CVE-2026-14684 Référence CVE CVE-2026-14685 https://www.cve.org/CVERecord?id=CVE-2026-14685 Référence CVE CVE-2026-14686 https://www.cve.org/CVERecord?id=CVE-2026-14686 Référence CVE CVE-2026-14976 https://www.cve.org/CVERecord?id=CVE-2026-14976 Référence CVE CVE-2026-14980 https://www.cve.org/CVERecord?id=CVE-2026-14980 Référence CVE CVE-2026-14981 https://www.cve.org/CVERecord?id=CVE-2026-14981 Référence CVE CVE-2026-15055 https://www.cve.org/CVERecord?id=CVE-2026-15055 Référence CVE CVE-2026-15057 https://www.cve.org/CVERecord?id=CVE-2026-15057 Référence CVE CVE-2026-15064 https://www.cve.org/CVERecord?id=CVE-2026-15064 Référence CVE CVE-2026-15280 https://www.cve.org/CVERecord?id=CVE-2026-15280 Référence CVE CVE-2026-15325 https://www.cve.org/CVERecord?id=CVE-2026-15325 Référence CVE CVE-2026-15328 https://www.cve.org/CVERecord?id=CVE-2026-15328 Référence CVE CVE-2026-1561 https://www.cve.org/CVERecord?id=CVE-2026-1561 Référence CVE CVE-2026-16192 https://www.cve.org/CVERecord?id=CVE-2026-16192 Référence CVE CVE-2026-16221 https://www.cve.org/CVERecord?id=CV

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-030981Bouncy Castleのbc-java等の複数製品における制限またはスロットリング無しのリソースの割り当てに関する脆弱性

Bouncy Castle for Java のバージョン 1.85 より前のバージョンでは、PKCS#8 / PBES2 の復号器が入力からの無制限の KDF コストを尊重してしまいます。この問題は、Bouncy Castle for Java LTS の 2.73.12 より前のバージョン、および Bouncy Castle for Java FIPS (BC-FJA) の bcpkix-fips 1.0.12 (1.0.X シリーズ)、2.0.12 (2.0.X シリーズ)、2.1.12 (2.1.X シリーズ) より前のバージョンにも影響を及ぼします。

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.
Fix availability varies by product
Affected
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.
Action
Use the product-specific evidence above. Patch only products with a verified fixed release, and keep every affected or under-investigation state without a matching fix in the remediation queue.
Workaround
Red Hat is not aware of a mitigation for this flaw other than updating the affected Bouncy Castle component to a fixed version (bc-java 1.85, LTS 2.73.12, or BC-FJA bcpkix-fips 1.0.12/2.0.12/2.1.12) once available for the affected product.
04

Evidence and provenance

Published 3 Aug 2026 · Last source change 3 Aug 2026, 13:28 UTC · CWE-770 · Allocation of Resources Without Limits or Throttling

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-2026-52019
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
    bcprov-jdk15on as a component of Red Hat AMQ Clients; ceph-base as a component of Red Hat Ceph Storage 9; ceph-common as a component of Red Hat Ceph Storage 9; ceph-fuse as a component of Red Hat Ceph Storage 9; ceph-immutable-object-cache as a component of Red Hat Ceph Storage 9; ceph-mib as a component of Red Hat Ceph Storage 9; ceph-resource-agents as a component of Red Hat Ceph Storage 9; ceph-selinux as a component of Red Hat Ceph Storage 9; ceph.src as a component of Red Hat Ceph Storage 9; cephadm as a component of Red Hat Ceph Storage 9; cephfs-top as a component of Red Hat Ceph Storage 9; libcephfs-devel as a component of Red Hat Ceph Storage 9; libcephfs-proxy2 as a component of Red Hat Ceph Storage 9; libcephfs2 as a component of Red Hat Ceph Storage 9; librados-devel as a component of Red Hat Ceph Storage 9; librados2 as a component of Red Hat Ceph Storage 9; libradospp-devel as a component of Red Hat Ceph Storage 9; libradosstriper1 as a component of Red Hat Ceph Storage 9; librbd-devel as a component of Red Hat Ceph Storage 9; librbd1 as a component of Red Hat Ceph Storage 9; librgw-devel as a component of Red Hat Ceph Storage 9; librgw2 as a component of Red Hat Ceph Storage 9; python3-ceph-argparse as a component of Red Hat Ceph Storage 9; python3-ceph-common as a component of Red Hat Ceph Storage 9; python3-cephfs as a component of Red Hat Ceph Storage 9; python3-rados as a component of Red Hat Ceph Storage 9; python3-rbd as a component of Red Hat Ceph Storage 9; python3-rgw as a component of Red Hat Ceph Storage 9; rbd-nbd as a component of Red Hat Ceph Storage 9; resteasy-javadoc (pki-deps:10.6) as a component of Red Hat Enterprise Linux 8; and 11 more
    After
    bcprov-jdk15on as a component of Red Hat AMQ Clients; ceph-base as a component of Red Hat Ceph Storage 9; ceph-common as a component of Red Hat Ceph Storage 9; ceph-fuse as a component of Red Hat Ceph Storage 9; ceph-immutable-object-cache as a component of Red Hat Ceph Storage 9; ceph-mib as a component of Red Hat Ceph Storage 9; ceph-resource-agents as a component of Red Hat Ceph Storage 9; ceph-selinux as a component of Red Hat Ceph Storage 9; ceph.src as a component of Red Hat Ceph Storage 9; cephadm as a component of Red Hat Ceph Storage 9; cephfs-top as a component of Red Hat Ceph Storage 9; libcephfs-devel as a component of Red Hat Ceph Storage 9; libcephfs-proxy2 as a component of Red Hat Ceph Storage 9; libcephfs2 as a component of Red Hat Ceph Storage 9; librados-devel as a component of Red Hat Ceph Storage 9; librados2 as a component of Red Hat Ceph Storage 9; libradospp-devel as a component of Red Hat Ceph Storage 9; libradosstriper1 as a component of Red Hat Ceph Storage 9; librbd-devel as a component of Red Hat Ceph Storage 9; librbd1 as a component of Red Hat Ceph Storage 9; librgw-devel as a component of Red Hat Ceph Storage 9; librgw2 as a component of Red Hat Ceph Storage 9; python3-ceph-argparse as a component of Red Hat Ceph Storage 9; python3-ceph-common as a component of Red Hat Ceph Storage 9; python3-cephfs as a component of Red Hat Ceph Storage 9; python3-rados as a component of Red Hat Ceph Storage 9; python3-rbd as a component of Red Hat Ceph Storage 9; python3-rgw as a component of Red Hat Ceph Storage 9; rbd-nbd as a component of Red Hat Ceph Storage 9; bcpkix-jdk15on as a component of Red Hat JBoss Enterprise Application Platform 7; and 3 more
    Red Hat Product Security ↗
  2. Affected versionsThe structured affected or fixed version information changed.
    Before
    bcprov-jdk15on as a component of Red Hat AMQ Clients; ceph-base as a component of Red Hat Ceph Storage 9; ceph-common as a component of Red Hat Ceph Storage 9; ceph-fuse as a component of Red Hat Ceph Storage 9; ceph-immutable-object-cache as a component of Red Hat Ceph Storage 9; ceph-mib as a component of Red Hat Ceph Storage 9; ceph-resource-agents as a component of Red Hat Ceph Storage 9; ceph-selinux as a component of Red Hat Ceph Storage 9; ceph.src as a component of Red Hat Ceph Storage 9; cephadm as a component of Red Hat Ceph Storage 9; cephfs-top as a component of Red Hat Ceph Storage 9; libcephfs-devel as a component of Red Hat Ceph Storage 9; libcephfs-proxy2 as a component of Red Hat Ceph Storage 9; libcephfs2 as a component of Red Hat Ceph Storage 9; librados-devel as a component of Red Hat Ceph Storage 9; librados2 as a component of Red Hat Ceph Storage 9; libradospp-devel as a component of Red Hat Ceph Storage 9; libradosstriper1 as a component of Red Hat Ceph Storage 9; librbd-devel as a component of Red Hat Ceph Storage 9; librbd1 as a component of Red Hat Ceph Storage 9; librgw-devel as a component of Red Hat Ceph Storage 9; librgw2 as a component of Red Hat Ceph Storage 9; python3-ceph-argparse as a component of Red Hat Ceph Storage 9; python3-ceph-common as a component of Red Hat Ceph Storage 9; python3-cephfs as a component of Red Hat Ceph Storage 9; python3-rados as a component of Red Hat Ceph Storage 9; python3-rbd as a component of Red Hat Ceph Storage 9; python3-rgw as a component of Red Hat Ceph Storage 9; rbd-nbd as a component of Red Hat Ceph Storage 9; resteasy-javadoc (pki-core:10.6) as a component of Red Hat Enterprise Linux 8; and 14 more
    After
    bcprov-jdk15on as a component of Red Hat AMQ Clients; ceph-base as a component of Red Hat Ceph Storage 9; ceph-common as a component of Red Hat Ceph Storage 9; ceph-fuse as a component of Red Hat Ceph Storage 9; ceph-immutable-object-cache as a component of Red Hat Ceph Storage 9; ceph-mib as a component of Red Hat Ceph Storage 9; ceph-resource-agents as a component of Red Hat Ceph Storage 9; ceph-selinux as a component of Red Hat Ceph Storage 9; ceph.src as a component of Red Hat Ceph Storage 9; cephadm as a component of Red Hat Ceph Storage 9; cephfs-top as a component of Red Hat Ceph Storage 9; libcephfs-devel as a component of Red Hat Ceph Storage 9; libcephfs-proxy2 as a component of Red Hat Ceph Storage 9; libcephfs2 as a component of Red Hat Ceph Storage 9; librados-devel as a component of Red Hat Ceph Storage 9; librados2 as a component of Red Hat Ceph Storage 9; libradospp-devel as a component of Red Hat Ceph Storage 9; libradosstriper1 as a component of Red Hat Ceph Storage 9; librbd-devel as a component of Red Hat Ceph Storage 9; librbd1 as a component of Red Hat Ceph Storage 9; librgw-devel as a component of Red Hat Ceph Storage 9; librgw2 as a component of Red Hat Ceph Storage 9; python3-ceph-argparse as a component of Red Hat Ceph Storage 9; python3-ceph-common as a component of Red Hat Ceph Storage 9; python3-cephfs as a component of Red Hat Ceph Storage 9; python3-rados as a component of Red Hat Ceph Storage 9; python3-rbd as a component of Red Hat Ceph Storage 9; python3-rgw as a component of Red Hat Ceph Storage 9; rbd-nbd as a component of Red Hat Ceph Storage 9; resteasy-javadoc (pki-deps:10.6) as a component of Red Hat Enterprise Linux 8; and 11 more
    Red Hat Product Security ↗
  3. Vendor guidanceAuthoritative vendor guidance changed: added patch: github.com/7ab4ee67a0135950001b29b41a96d8a9a5d3b68b; added remediation: github.com/7ab4ee67a0135950001b29b41a96d8a9a5d3b68b.
    Before
    no authoritative guidance recorded
    After
    patch: github.com/7ab4ee67a0135950001b29b41a96d8a9a5d3b68b · remediation: github.com/7ab4ee67a0135950001b29b41a96d8a9a5d3b68b
    github.com ↗
  4. Affected versionsThe structured affected or fixed version information changed.
    Before
    < 1.85; 2.73.0 < 2.73.12; 1.0.0 < 1.0.12; 2.0.0 < 2.0.12; 2.1.0 < 2.1.12 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    After
    < 1.85; 2.73.0 < 2.73.12; 1.0.0 < 1.0.12; 2.0.0 < 2.0.12; 2.1.0 < 2.1.12 · 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.
    CNA ↗
  5. Remediation statusRemediation status changed from Awaiting fix to Patch available.
    Before
    Awaiting fix
    After
    Patch available
    github.com ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2026-52019↗Vendor CSAF · Red Hat Product Security↗Patch or update reference↗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-2026-15055 · cve.blacktree.nl