CVE-2026-14164
highpriority · track · 0EPSS 0.008 · 56 %ileDEEUFRUSEPSS · scored 2026-10-27
A double free issue has been identified in libarchive's RAR5 reader. During parsing of a specially crafted RAR5 archive, the filtered_buf pointer may remain stale after being freed during unpacking state reinitialization. Subsequent processing of another archive entry can trigger a second free of the same memory region, resulting in a double-free condition. Successful exploitation may cause applications using the vulnerable libarchive API to terminate unexpectedly, leading to a denial of service.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (17)
Products and version ranges known to be affected.
- Red Hat Enterprise Linux 9.6 Extended Update Supportall versionscert_bundDEcpe:/o:redhat:enterprise_linux:9.6_extended_update_support
- Red Hat OpenShift Container Platformall versionscert_bundDEcpe:/a:redhat:openshift:container_platform
advisories (2)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-2710libarchive: Schwachstelle ermöglicht Denial of ServiceDeutsch2026-08-09csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in libarchive ausnutzen, um einen Denial of Service Angriff durchzuführen.
- CERTFR-2026-AVI-1385Multiples vulnérabilités dans les produits VMwareFrançais2026-10-26vendor · certfrFR
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (69)
External citations — patches, advisories, analysis.
- https://access.redhat.com/errata/RHSA-2026:30333cnnvd
- https://access.redhat.com/security/cve/CVE-2026-14164cnnvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2493411cnnvd
- https://github.com/libarchive/libarchive/issues/3069cnnvd
- https://github.com/libarchive/libarchive/pull/3071cnnvd
- https://access.redhat.com/errata/RHSA-2026:30333enisa_euvd
- https://access.redhat.com/errata/RHSA-2026:52674enisa_euvd
- https://access.redhat.com/errata/RHSA-2026:52675enisa_euvd
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