CVE-2026-4424

A flaw was found in libarchive. This heap out-of-bounds read vulnerability exists in the RAR archive processing logic due to improper validation of the LZSS sliding window size after transitions between compression methods. A remote attacker can exploit this by providing a specially crafted RAR archive, leading to the disclosure of sensitive heap memory information without requiring authentication or user interaction.
References
Link Resource
https://access.redhat.com/errata/RHSA-2026:10065 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:10097 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:11768 Third Party Advisory
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-2026:8492 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:8510 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:8517 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:8521 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:8534 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:8864 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:8865 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:8866 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:8867 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:8873 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:8908 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:8944 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:9026 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:9592 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:9832 Third Party Advisory
https://access.redhat.com/security/cve/CVE-2026-4424 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2449006 Issue Tracking Third Party Advisory
https://github.com/libarchive/libarchive/pull/2898 Issue Tracking Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:10065 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:10097 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:11768 Third Party Advisory
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-2026:8492 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:8510 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:8517 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:8521 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:8534 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:8864 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:8865 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:8866 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:8867 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:8873 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:8908 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:8944 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:9026 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:9592 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:9832 Third Party Advisory
https://access.redhat.com/security/cve/CVE-2026-4424 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2449006 Issue Tracking Third Party Advisory
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4424.json
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:a:redhat:openshift_container_platform:4.16:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_container_platform_for_arm64:4.16:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_container_platform_for_power:4.16:*:*:*:*:*:*:*
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:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_aus:8.2:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_aus:8.4:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-03-19 15:16

Updated : 2026-08-31 17:17


NVD link : CVE-2026-4424

Mitre link : CVE-2026-4424

CVE.ORG link : CVE-2026-4424


JSON object : View

Products Affected

redhat

  • openshift_container_platform_for_arm64
  • enterprise_linux
  • enterprise_linux_server_aus
  • openshift_container_platform
  • hardened_images
  • openshift_container_platform_for_power

libarchive

  • libarchive
CWE
CWE-125

Out-of-bounds Read