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Full vulnerability report · 2026
CVE-2026-0861High confidence

Integer overflow in memalign leads to heap corruption

The GNU C Library · glibc

8.4HighCVSS 3.1
Recommended action
Within 7 days

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

Patch available
Distribution package intelligence

Ubuntu vendor package status

Canonical’s release and source-package findings are shown separately from local repository availability.

1 package state
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.

Ubuntu releaseSource packageVendor stateFixed versionEvidence
Ubuntu 24.04 LTSnoble · standard archiveglibcVendor fix publishedCanonical reports that a fixed source package version has been published. Repository candidate availability is not checked by BlackTree.2.39-0ubuntu8.7Canonical record ↗Source updated 10 Sept 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-2026-0861 · CSAF 2.0 · revision 3 · finalRed Hat Product Securityglibc: Integer overflow in memalign leads to heap corruption
1 known affected

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

  • openshift/ose-rhel-coreos-9 as a component of Red Hat OpenShift Container Platform 4
Summary
A flaw was found in the glibc library. Passing an excessively large alignment value to the memalign suite of functions, such as memalign, posix_memalign, aligned_alloc, valloc and pvalloc, an integer overflow can occur during internal size calculations due to improper overflow checks, causing an allocation of a small chunk of memory which is subsequently used for writing. This issue can result in an application crash or heap memory corruption.
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.

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

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-2026-2441

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

Patch available
01

What, why and how

Passing too large an alignment to the memalign suite of functions (memalign, posix_memalign, aligned_alloc) in the GNU C Library version 2.30 to 2.42 may result in an integer overflow, which could consequently result in a heap corruption. Note that the attacker must have control over both, the size as well as the alignment arguments of the memalign function to be able to exploit this. The size parameter must be close enough to PTRDIFF_MAX so as to overflow size_t along with the large alignment argument. This limits the malicious inputs for the alignment for memalign to the range [1<<62+ 1, 1<<63] and exactly 1<<63 for posix_memalign and aligned_alloc. Typically the alignment argument passed to such functions is a known constrained quantity (e.g. page size, block size, struct sizes) and is not attacker controlled, because of which this may not be easily exploitable in practice. An application bug could potentially result in the input alignment being too large, e.g. due to a different buffer overflow or integer overflow in the application or its dependent libraries, but that is again an uncommon usage pattern given typical sources of alignments.

What

Passing too large an alignment to the memalign suite of functions (memalign, posix_memalign, aligned_alloc) in the GNU C Library version 2.30 to 2.42 may result in an integer overflow, which could consequently result in a heap corruption. Note that the attacker must have control over both, the size as well as the alignment arguments of the memalign function to be able to exploit this. The size parameter must be close enough to PTRDIFF_MAX so as to overflow size_t along with the large alignment argument. This limits the malicious inputs for the alignment for memalign to the range [1<<62+ 1, 1<<63] and exactly 1<<63 for posix_memalign and aligned_alloc. Typically the alignment argument passed to such functions is a known constrained quantity (e.g. page size, block size, struct sizes) and is not attacker controlled, because of which this may not be easily exploitable in practice. An application bug could potentially result in the input alignment being too large, e.g. due to a different buffer overflow or integer overflow in the application or its dependent libraries, but that is again an uncommon usage pattern given typical sources of alignments.

Why

The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

How

An attacker operating through local access 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

Passing too large an alignment to the memalign suite of functions (memalign, posix_memalign, aligned_alloc) in the GNU C Library version 2.30 to 2.42 may result in an integer overflow, which could consequently result in a heap corruption. Note that the attacker must have control over both, the size as well as the alignment arguments of the memalign function to be able to exploit this. The size parameter must be close enough to PTRDIFF_MAX so as to overflow size_t along with the large alignment argument. This limits the malicious inputs for the alignment for memalign to the range [1<<62+ 1, 1<<63] and exactly 1<<63 for posix_memalign and aligned_alloc. Typically the alignment argument passed to such functions is a known constrained quantity (e.g. page size, block size, struct sizes) and is not attacker controlled, because of which this may not be easily exploitable in practice. An application bug could potentially result in the input alignment being too large, e.g. due to a different buffer overflow or integer overflow in the application or its dependent libraries, but that is again an uncommon usage pattern given typical sources of alignments.

Why

The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

How

An attacker operating through local access 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
local access → Integer Overflow or Wraparound → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Local
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-190 ↗

CWE-190: Integer Overflow or Wraparound. The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

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

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

AVLocalAttack vector: The attacker needs local access to the vulnerable system.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.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.
UnauthenticatedCWE-190Public 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-W-2026-3038Meinberg LANTIME: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Meinberg LANTIME ausnutzen, um beliebigen Code auszuführen, Berechtigungen zu erweitern, Sicherheitsmaßnahmen zu umgehen, sensible Informationen offenzulegen, Daten zu manipulieren oder Denial-of-Service-Zustände herbeizuführen.

Official advisory
BSI · German · WID-SEC-W-2026-2437Oracle Communications: Mehrere Schwachstellen

Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Oracle Communications ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.

Official advisory
BSI · German · WID-SEC-W-2026-2189Dell PowerProtect Data Domain: Mehrere Schwachstellen

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

Official advisory
BSI · German · WID-SEC-W-2026-1194Oracle Communications: Mehrere Schwachstellen

Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Oracle Communications ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.

Official advisory
BSI · German · WID-SEC-W-2026-1007IBM App Connect Enterprise: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in IBM App Connect Enterprise ausnutzen, um Sicherheitsvorkehrungen zu umgehen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, um Dateien zu manipulieren, um einen Cross-Site Scripting Angriff durchzuführen, um einen SQL-Injection Angriff durchzuführen, und um beliebigen Programmcode auszuführen.

Official advisory
BSI · German · WID-SEC-W-2026-0778Dell Secure Connect Gateway Policy Manager: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Dell Secure Connect Gateway Policy Manager ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen.

Official advisory
BSI · German · WID-SEC-W-2026-0118GNU libc: Schwachstelle ermöglicht Codeausführung

Ein lokaler Angreifer kann eine Schwachstelle in GNU libc ausnutzen, um beliebigen Programmcode auszuführen.

Official advisory
CERT-FR · French · CERTFR-2026-AVI-0556Multiples vulnérabilités dans les produits VMware

.cve.org/CVERecord?id=CVE-2025-8714 Référence CVE CVE-2025-8715 https://www.cve.org/CVERecord?id=CVE-2025-8715 Référence CVE CVE-2025-8869 https://www.cve.org/CVERecord?id=CVE-2025-8869 Référence CVE CVE-2025-8916 https://www.cve.org/CVERecord?id=CVE-2025-8916 Référence CVE CVE-2025-9230 https://www.cve.org/CVERecord?id=CVE-2025-9230 Référence CVE CVE-2025-9231 https://www.cve.org/CVERecord?id=CVE-2025-9231 Référence CVE CVE-2025-9820 https://www.cve.org/CVERecord?id=CVE-2025-9820 Référence CVE CVE-2026-0672 https://www.cve.org/CVERecord?id=CVE-2026-0672 Référence CVE CVE-2026-0846 https://www.cve.org/CVERecord?id=CVE-2026-0846 Référence CVE CVE-2026-0861 https://www.cve.org/CVERecord?id=CVE-2026-0861 Référence CVE CVE-2026-0865 https://www.cve.org/CVERecord?id=CVE-2026-0865 Référence CVE CVE-2026-0897 https://www.cve.org/CVERecord?id=CVE-2026-0897 Référence CVE CVE-2026-0915 https://www.cve.org/CVERecord?id=CVE-2026-0915 Référence CVE CVE-2026-1225 https://www.cve.org/CVERecord?id=CVE-2026-1225 Référence CVE CVE-2026-1299 https://www.cve.org/CVERecord?id=CVE-2026-1299 Référence CVE CVE-2026-1462 https://www.cve.org/CVERecord?id=CVE-2026-1462 Référence CVE CVE-2026-1519 https://www.cve.org/CVERecord?id=CVE-2026-1519 Référence CVE CVE-2026-1669 https://www.cve.org/CVERecord?id=CVE-2026-1669 Ré

Official advisory
CERT-FR · French · CERTFR-2026-AVI-0394Multiples vulnérabilités dans VMware Tanzu

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

Official advisory
CERT-FR · French · CERTFR-2026-AVI-0322Multiples vulnérabilités dans les produits VMware

ord?id=CVE-2025-52520 Référence CVE CVE-2025-53506 https://www.cve.org/CVERecord?id=CVE-2025-53506 Référence CVE CVE-2025-55668 https://www.cve.org/CVERecord?id=CVE-2025-55668 Référence CVE CVE-2025-55752 https://www.cve.org/CVERecord?id=CVE-2025-55752 Référence CVE CVE-2025-55754 https://www.cve.org/CVERecord?id=CVE-2025-55754 Référence CVE CVE-2025-61795 https://www.cve.org/CVERecord?id=CVE-2025-61795 Référence CVE CVE-2025-66614 https://www.cve.org/CVERecord?id=CVE-2025-66614 Référence CVE CVE-2025-67735 https://www.cve.org/CVERecord?id=CVE-2025-67735 Référence CVE CVE-2025-9820 https://www.cve.org/CVERecord?id=CVE-2025-9820 Référence CVE CVE-2026-0861 https://www.cve.org/CVERecord?id=CVE-2026-0861 Référence CVE CVE-2026-0915 https://www.cve.org/CVERecord?id=CVE-2026-0915 Référence CVE CVE-2026-1225 https://www.cve.org/CVERecord?id=CVE-2026-1225 Référence CVE CVE-2026-24051 https://www.cve.org/CVERecord?id=CVE-2026-24051 Référence CVE CVE-2026-24733 https://www.cve.org/CVERecord?id=CVE-2026-24733 Référence CVE CVE-2026-24734 https://www.cve.org/CVERecord?id=CVE-2026-24734 Référence CVE CVE-2026-25518 https://www.cve.org/CVERecord?id=CVE-2026-25518 Référence CVE CVE-2026-25679 https://www.cve.org/CVERecord?id=CVE-2026-25679 Référence CVE CVE-2026-27139 https://www.cve.org/CVERecord?id=CVE-2

Official advisory
CERT-FR · French · CERTFR-2026-AVI-0266Multiples vulnérabilités dans VMware Tanzu

ERecord?id=CVE-2025-61732 Référence CVE CVE-2025-62813 https://www.cve.org/CVERecord?id=CVE-2025-62813 Référence CVE CVE-2025-64118 https://www.cve.org/CVERecord?id=CVE-2025-64118 Référence CVE CVE-2025-68119 https://www.cve.org/CVERecord?id=CVE-2025-68119 Référence CVE CVE-2025-68121 https://www.cve.org/CVERecord?id=CVE-2025-68121 Référence CVE CVE-2025-68972 https://www.cve.org/CVERecord?id=CVE-2025-68972 Référence CVE CVE-2025-7039 https://www.cve.org/CVERecord?id=CVE-2025-7039 Référence CVE CVE-2025-9232 https://www.cve.org/CVERecord?id=CVE-2025-9232 Référence CVE CVE-2025-9820 https://www.cve.org/CVERecord?id=CVE-2025-9820 Référence CVE CVE-2026-0861 https://www.cve.org/CVERecord?id=CVE-2026-0861 Référence CVE CVE-2026-0915 https://www.cve.org/CVERecord?id=CVE-2026-0915 Référence CVE CVE-2026-0988 https://www.cve.org/CVERecord?id=CVE-2026-0988 Référence CVE CVE-2026-0989 https://www.cve.org/CVERecord?id=CVE-2026-0989 Référence CVE CVE-2026-0990 https://www.cve.org/CVERecord?id=CVE-2026-0990 Référence CVE CVE-2026-0992 https://www.cve.org/CVERecord?id=CVE-2026-0992 Référence CVE CVE-2026-1484 https://www.cve.org/CVERecord?id=CVE-2026-1484 Référence CVE CVE-2026-1485 https://www.cve.org/CVERecord?id=CVE-2026-1485 Référence CVE CVE-2026-1489 https://www.cve.org/CVERecord?id=CVE-2026-1489 Ré

Official advisory
CERT-FR · French · CERTFR-2026-AVI-0218Multiples vulnérabilités dans les produits VMware

.cve.org/CVERecord?id=CVE-2025-8941 Référence CVE CVE-2025-8959 https://www.cve.org/CVERecord?id=CVE-2025-8959 Référence CVE CVE-2025-9086 https://www.cve.org/CVERecord?id=CVE-2025-9086 Référence CVE CVE-2025-9165 https://www.cve.org/CVERecord?id=CVE-2025-9165 Référence CVE CVE-2025-9230 https://www.cve.org/CVERecord?id=CVE-2025-9230 Référence CVE CVE-2025-9231 https://www.cve.org/CVERecord?id=CVE-2025-9231 Référence CVE CVE-2025-9714 https://www.cve.org/CVERecord?id=CVE-2025-9714 Référence CVE CVE-2025-9900 https://www.cve.org/CVERecord?id=CVE-2025-9900 Référence CVE CVE-2026-0672 https://www.cve.org/CVERecord?id=CVE-2026-0672 Référence CVE CVE-2026-0861 https://www.cve.org/CVERecord?id=CVE-2026-0861 Référence CVE CVE-2026-0865 https://www.cve.org/CVERecord?id=CVE-2026-0865 Référence CVE CVE-2026-0900 https://www.cve.org/CVERecord?id=CVE-2026-0900 Référence CVE CVE-2026-0902 https://www.cve.org/CVERecord?id=CVE-2026-0902 Référence CVE CVE-2026-0915 https://www.cve.org/CVERecord?id=CVE-2026-0915 Référence CVE CVE-2026-0988 https://www.cve.org/CVERecord?id=CVE-2026-0988 Référence CVE CVE-2026-0989 https://www.cve.org/CVERecord?id=CVE-2026-0989 Référence CVE CVE-2026-0990 https://www.cve.org/CVERecord?id=CVE-2026-0990 Référence CVE CVE-2026-0992 https://www.cve.org/CVERecord?id=CVE-2026-0992 Ré

Official advisory
CERT-FR · French · CERTFR-2026-AVI-0209Multiples vulnérabilités dans les produits VMware

cve.org/CVERecord?id=CVE-2025-69421 Référence CVE CVE-2025-7039 https://www.cve.org/CVERecord?id=CVE-2025-7039 Référence CVE CVE-2025-8277 https://www.cve.org/CVERecord?id=CVE-2025-8277 Référence CVE CVE-2025-8291 https://www.cve.org/CVERecord?id=CVE-2025-8291 Référence CVE CVE-2025-8556 https://www.cve.org/CVERecord?id=CVE-2025-8556 Référence CVE CVE-2025-8732 https://www.cve.org/CVERecord?id=CVE-2025-8732 Référence CVE CVE-2025-8869 https://www.cve.org/CVERecord?id=CVE-2025-8869 Référence CVE CVE-2025-9820 https://www.cve.org/CVERecord?id=CVE-2025-9820 Référence CVE CVE-2026-0672 https://www.cve.org/CVERecord?id=CVE-2026-0672 Référence CVE CVE-2026-0861 https://www.cve.org/CVERecord?id=CVE-2026-0861 Référence CVE CVE-2026-0865 https://www.cve.org/CVERecord?id=CVE-2026-0865 Référence CVE CVE-2026-0915 https://www.cve.org/CVERecord?id=CVE-2026-0915 Référence CVE CVE-2026-0964 https://www.cve.org/CVERecord?id=CVE-2026-0964 Référence CVE CVE-2026-0965 https://www.cve.org/CVERecord?id=CVE-2026-0965 Référence CVE CVE-2026-0966 https://www.cve.org/CVERecord?id=CVE-2026-0966 Référence CVE CVE-2026-0967 https://www.cve.org/CVERecord?id=CVE-2026-0967 Référence CVE CVE-2026-0968 https://www.cve.org/CVERecord?id=CVE-2026-0968 Référence CVE CVE-2026-0988 https://www.cve.org/CVERecord?id=CVE-2026-0988 Ré

Official advisory
CERT-FR · French · CERTFR-2026-AVI-0199Multiples vulnérabilités dans les produits VMware

.cve.org/CVERecord?id=CVE-2025-8556 Référence CVE CVE-2025-8732 https://www.cve.org/CVERecord?id=CVE-2025-8732 Référence CVE CVE-2025-8916 https://www.cve.org/CVERecord?id=CVE-2025-8916 Référence CVE CVE-2025-8941 https://www.cve.org/CVERecord?id=CVE-2025-8941 Référence CVE CVE-2025-9086 https://www.cve.org/CVERecord?id=CVE-2025-9086 Référence CVE CVE-2025-9230 https://www.cve.org/CVERecord?id=CVE-2025-9230 Référence CVE CVE-2025-9232 https://www.cve.org/CVERecord?id=CVE-2025-9232 Référence CVE CVE-2025-9714 https://www.cve.org/CVERecord?id=CVE-2025-9714 Référence CVE CVE-2026-0672 https://www.cve.org/CVERecord?id=CVE-2026-0672 Référence CVE CVE-2026-0861 https://www.cve.org/CVERecord?id=CVE-2026-0861 Référence CVE CVE-2026-0865 https://www.cve.org/CVERecord?id=CVE-2026-0865 Référence CVE CVE-2026-0915 https://www.cve.org/CVERecord?id=CVE-2026-0915 Référence CVE CVE-2026-0988 https://www.cve.org/CVERecord?id=CVE-2026-0988 Référence CVE CVE-2026-0989 https://www.cve.org/CVERecord?id=CVE-2026-0989 Référence CVE CVE-2026-0990 https://www.cve.org/CVERecord?id=CVE-2026-0990 Référence CVE CVE-2026-0992 https://www.cve.org/CVERecord?id=CVE-2026-0992 Référence CVE CVE-2026-1225 https://www.cve.org/CVERecord?id=CVE-2026-1225 Référence CVE CVE-2026-1484 https://www.cve.org/CVERecord?id=CVE-2026-1484 Ré

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
openshift/ose-rhel-coreos-9 as a component of Red Hat OpenShift Container Platform 4
Fixed
glibc-benchtests-debuginfo-0:2.39-58.el10_1.7.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-benchtests-debuginfo-0:2.39-58.el10_1.7.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-benchtests-debuginfo-0:2.39-58.el10_1.7.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-benchtests-debuginfo-0:2.39-58.el10_1.7.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-common-debuginfo-0:2.39-58.el10_1.7.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-common-debuginfo-0:2.39-58.el10_1.7.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-common-debuginfo-0:2.39-58.el10_1.7.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-common-debuginfo-0:2.39-58.el10_1.7.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debuginfo-0:2.39-58.el10_1.7.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debuginfo-0:2.39-58.el10_1.7.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debuginfo-0:2.39-58.el10_1.7.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debuginfo-0:2.39-58.el10_1.7.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debugsource-0:2.39-58.el10_1.7.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debugsource-0:2.39-58.el10_1.7.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debugsource-0:2.39-58.el10_1.7.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debugsource-0:2.39-58.el10_1.7.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-devel-0:2.39-58.el10_1.7.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-devel-0:2.39-58.el10_1.7.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-devel-0:2.39-58.el10_1.7.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-devel-0:2.39-58.el10_1.7.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-doc-0:2.39-58.el10_1.7.noarch as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-gconv-extra-debuginfo-0:2.39-58.el10_1.7.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-gconv-extra-debuginfo-0:2.39-58.el10_1.7.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-gconv-extra-debuginfo-0:2.39-58.el10_1.7.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-gconv-extra-debuginfo-0:2.39-58.el10_1.7.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-locale-source-0:2.39-58.el10_1.7.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-locale-source-0:2.39-58.el10_1.7.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-locale-source-0:2.39-58.el10_1.7.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-locale-source-0:2.39-58.el10_1.7.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-utils-0:2.39-58.el10_1.7.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); and 996 more
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. Limit untrusted access and use least privilege until authoritative guidance is available.
04

Evidence and provenance

Published 14 Jan 2026 · Last source change 29 Apr 2026, 13:28 UTC · CWE-190 · Integer Overflow or Wraparound

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-2026-2441
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
    rhcos as a component of Red Hat OpenShift Container Platform 4 · Fixed: glibc-benchtests-debuginfo-0:2.39-58.el10_1.7.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-benchtests-debuginfo-0:2.39-58.el10_1.7.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-benchtests-debuginfo-0:2.39-58.el10_1.7.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-benchtests-debuginfo-0:2.39-58.el10_1.7.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-common-debuginfo-0:2.39-58.el10_1.7.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-common-debuginfo-0:2.39-58.el10_1.7.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-common-debuginfo-0:2.39-58.el10_1.7.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-common-debuginfo-0:2.39-58.el10_1.7.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debuginfo-0:2.39-58.el10_1.7.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debuginfo-0:2.39-58.el10_1.7.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debuginfo-0:2.39-58.el10_1.7.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debuginfo-0:2.39-58.el10_1.7.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debugsource-0:2.39-58.el10_1.7.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debugsource-0:2.39-58.el10_1.7.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debugsource-0:2.39-58.el10_1.7.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debugsource-0:2.39-58.el10_1.7.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-devel-0:2.39-58.el10_1.7.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-devel-0:2.39-58.el10_1.7.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-devel-0:2.39-58.el10_1.7.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-devel-0:2.39-58.el10_1.7.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-doc-0:2.39-58.el10_1.7.noarch as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-gconv-extra-debuginfo-0:2.39-58.el10_1.7.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-gconv-extra-debuginfo-0:2.39-58.el10_1.7.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-gconv-extra-debuginfo-0:2.39-58.el10_1.7.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-gconv-extra-debuginfo-0:2.39-58.el10_1.7.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-locale-source-0:2.39-58.el10_1.7.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-locale-source-0:2.39-58.el10_1.7.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-locale-source-0:2.39-58.el10_1.7.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-locale-source-0:2.39-58.el10_1.7.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-utils-0:2.39-58.el10_1.7.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); and 996 more
    After
    openshift/ose-rhel-coreos-9 as a component of Red Hat OpenShift Container Platform 4 · Fixed: glibc-benchtests-debuginfo-0:2.39-58.el10_1.7.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-benchtests-debuginfo-0:2.39-58.el10_1.7.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-benchtests-debuginfo-0:2.39-58.el10_1.7.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-benchtests-debuginfo-0:2.39-58.el10_1.7.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-common-debuginfo-0:2.39-58.el10_1.7.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-common-debuginfo-0:2.39-58.el10_1.7.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-common-debuginfo-0:2.39-58.el10_1.7.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-common-debuginfo-0:2.39-58.el10_1.7.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debuginfo-0:2.39-58.el10_1.7.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debuginfo-0:2.39-58.el10_1.7.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debuginfo-0:2.39-58.el10_1.7.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debuginfo-0:2.39-58.el10_1.7.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debugsource-0:2.39-58.el10_1.7.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debugsource-0:2.39-58.el10_1.7.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debugsource-0:2.39-58.el10_1.7.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debugsource-0:2.39-58.el10_1.7.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-devel-0:2.39-58.el10_1.7.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-devel-0:2.39-58.el10_1.7.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-devel-0:2.39-58.el10_1.7.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-devel-0:2.39-58.el10_1.7.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-doc-0:2.39-58.el10_1.7.noarch as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-gconv-extra-debuginfo-0:2.39-58.el10_1.7.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-gconv-extra-debuginfo-0:2.39-58.el10_1.7.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-gconv-extra-debuginfo-0:2.39-58.el10_1.7.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-gconv-extra-debuginfo-0:2.39-58.el10_1.7.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-locale-source-0:2.39-58.el10_1.7.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-locale-source-0:2.39-58.el10_1.7.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-locale-source-0:2.39-58.el10_1.7.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-locale-source-0:2.39-58.el10_1.7.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-utils-0:2.39-58.el10_1.7.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); and 996 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
ENISA EUVD · EUVD-2026-2441↗Vendor CSAF · Red Hat Product Security↗Patch or update reference↗Patch or update reference↗Public exploit 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-2026-0861 · cve.blacktree.nl