CVE-2026-5121

A flaw was found in libarchive. On 32-bit systems, an integer overflow vulnerability exists in the zisofs block pointer allocation logic. A remote attacker can exploit this by providing a specially crafted ISO9660 image, which can lead to a heap buffer overflow. This could potentially allow for arbitrary code execution on the affected system.
References
Link Resource
https://access.redhat.com/errata/RHSA-2026:10065
https://access.redhat.com/errata/RHSA-2026:10097
https://access.redhat.com/errata/RHSA-2026:11768
https://access.redhat.com/errata/RHSA-2026:12071
https://access.redhat.com/errata/RHSA-2026:12274
https://access.redhat.com/errata/RHSA-2026:13812
https://access.redhat.com/errata/RHSA-2026:14773
https://access.redhat.com/errata/RHSA-2026:14937
https://access.redhat.com/errata/RHSA-2026:15087
https://access.redhat.com/errata/RHSA-2026:16008
https://access.redhat.com/errata/RHSA-2026:16009
https://access.redhat.com/errata/RHSA-2026:16030
https://access.redhat.com/errata/RHSA-2026:16174
https://access.redhat.com/errata/RHSA-2026:17596
https://access.redhat.com/errata/RHSA-2026:19724
https://access.redhat.com/errata/RHSA-2026:19725
https://access.redhat.com/errata/RHSA-2026:20040
https://access.redhat.com/errata/RHSA-2026:21690
https://access.redhat.com/errata/RHSA-2026:25096
https://access.redhat.com/errata/RHSA-2026:8510
https://access.redhat.com/errata/RHSA-2026:8517
https://access.redhat.com/errata/RHSA-2026:8521
https://access.redhat.com/errata/RHSA-2026:8534
https://access.redhat.com/errata/RHSA-2026:8864
https://access.redhat.com/errata/RHSA-2026:8866
https://access.redhat.com/errata/RHSA-2026:8867
https://access.redhat.com/errata/RHSA-2026:8873
https://access.redhat.com/errata/RHSA-2026:8908
https://access.redhat.com/errata/RHSA-2026:8944
https://access.redhat.com/errata/RHSA-2026:9026
https://access.redhat.com/errata/RHSA-2026:9592
https://access.redhat.com/errata/RHSA-2026:9832
https://access.redhat.com/security/cve/CVE-2026-5121 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2452945
https://github.com/advisories/GHSA-2vwv-vqpv-v8vc Third Party Advisory
https://github.com/libarchive/libarchive/pull/2934 Issue Tracking Patch
https://cert-portal.siemens.com/productcert/html/ssa-585531.html
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:libarchive:libarchive:-:*:*:*:*:*:*:*
cpe:2.3:a:redhat:hardened_images:-:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-03-30 08:16

Updated : 2026-09-01 09:16


NVD link : CVE-2026-5121

Mitre link : CVE-2026-5121

CVE.ORG link : CVE-2026-5121


JSON object : View

Products Affected

redhat

  • enterprise_linux
  • openshift_container_platform
  • hardened_images

libarchive

  • libarchive
CWE
CWE-190

Integer Overflow or Wraparound