CVE-2026-59847

Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9

Published 21 Jul 2026 · updated 4 Sept 2026 · Analyzed

7.5 High · CVSS 3.1, NVD

Description

A flaw was found in libssh. Incorrect AES-GCM finalization checks in builds using the OpenSSL backend can effectively remove integrity protection, allowing an in-path attacker to modify plaintext on the wire without detection.

References

access.redhat.com/errata/RHSA-2026:42922 · Third Party Advisory
access.redhat.com/errata/RHSA-2026:55855 · Third Party Advisory
access.redhat.com/errata/RHSA-2026:62217 · Third Party Advisory
access.redhat.com/errata/RHSA-2026:62218 · Third Party Advisory
access.redhat.com/security/cve/CVE-2026-59847 · Third Party Advisory
bugzilla.redhat.com/show_bug.cgi?id=2498180 · Issue Tracking, Third Party Advisory