CVE-2026-4426 identifies an Undefined Behavior vulnerability in the libarchive library's zisofs decompression logic, stemming from improper validation of a field within ISO9660 Rock Ridge extensions. A remote attacker can exploit this flaw by supplying a specially crafted ISO file, which, with user interaction, can lead to incorrect memory allocation and application crashes, resulting in a denial-of-service (DoS) condition. This vulnerability is rated Medium severity with a CVSS score of 6.5. There is currently no evidence of active exploitation, public exploit code, or significant community discussion regarding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:a:libarchive:libarchive:-:*:*:*:*:*:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:a:redhat:hardened_images:-:*:*:*:*:*:*:* | ||
4.0CPE matchmatch criteria | cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:* | ||
6.0CPE matchmatch criteria | cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* | ||
7.0CPE matchmatch criteria | cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
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