What is RHSA-2026:8865?

RHSA-2026:8865 is a security advisory published by Red Hat Product Security with High severity. Red Hat Security Advisory: libarchive security update

Which CVE IDs does RHSA-2026:8865 cover?

RHSA-2026:8865 covers the following CVE IDs: CVE-2026-4111, CVE-2026-4424. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of RHSA-2026:8865?

RHSA-2026:8865 has a CVSS v3 base score of 7.5, published by Red Hat Product Security.

RHSA-2026:8865HighCVSS 7.5

Red Hat Security Advisory: libarchive security update

Vendor

Red Hat Product Security

Published

April 20, 2026

Last Modified

June 25, 2026

🔗 CVE IDs covered (2)

CVE-2026-4111 →CVE-2026-4424 →

📋 Description

CVE-2026-4111 — libarchive: Infinite Loop Denial of Service in RAR5 Decompression via archive_read_data() in libarchive CVE-2026-4424 — libarchive: libarchive: Information disclosure via heap out-of-bounds read in RAR archive processing

🔗 References (5)

selfhttps://access.redhat.com/errata/RHSA-2026:8865
externalhttps://access.redhat.com/security/updates/classification/#important
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2446453
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2449006
selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_8865.json