CVE-2025-5916: Libarchive

Medium severity, CVSS 5.6. EPSS: 0.2% chance of exploitation in the next 30 days.

A vulnerability has been identified in the libarchive library. This flaw involves an integer overflow that can be triggered when processing a Web Archive (WARC) file that claims to have more than INT64_MAX - 4 content bytes. An attacker could craft a malicious WARC archive to induce this overflow, potentially leading to unpredictable program behavior, memory corruption, or a denial-of-service condition within applications that process such archives using libarchive. This bug affects libarchive versions prior to 3.8.0.

Affected products

• Libarchive Libarchive: before 3.8.0 (fixed in 3.8.0)
• Red Hat Enterprise Linux: version 6.0 only; version 7.0 only; version 8.0 only; version 9.0 only; version 10.0 only
• Red Hat Openshift Container Platform: version 4.0 only

Published 2025-06-09. Last modified 2026-09-01.