CVEvulnerability
CVE-2026-4426
6.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2026-03-19
- Last modified
- 2026-09-01
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-1335
Description
A flaw was found in libarchive. An Undefined Behavior vulnerability exists in the zisofs decompression logic, caused by improper validation of a field (`pz_log2_bs`) read from ISO9660 Rock Ridge extensions. A remote attacker can exploit this by supplying a specially crafted ISO file. This can lead to incorrect memory allocation and potential application crashes, resulting in a denial-of-service (DoS) condition.
Affected configurations
• libarchive libarchive
• redhat hardened images
• redhat openshift container platform 4.0
• redhat enterprise linux 6.0
• redhat enterprise linux 7.0
• redhat enterprise linux 8.0
• redhat enterprise linux 9.0
• redhat enterprise linux 10.0
Related
Weakness · CWE (1)
- CWE-1335 Incorrect Bitwise Shift of Integer weakness
References
- https://access.redhat.com/errata/RHSA-2026:8944 access.redhat.com
- https://access.redhat.com/security/cve/CVE-2026-4426 Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2449010 Issue Tracking, Third Party Advisory
- https://github.com/libarchive/libarchive/pull/2897 Issue Tracking, Patch