RHSA-2026:27708 — Red Hat Security Advisory: kernel security, bug fix, and enhancement update

The Red Hat security advisory covers the CephX authentication protocol and multiple Linux kernel vulnerabilities. The CephX flaw may allow an attacker with a compromised low-privilege CephX entity key to forge privileged credentials, providing cluster-wide access including data reads, data corruption, and full administrative control. The kernel issues may result in denial of service, system crashes, use-after-free conditions, privilege escalation, or, in the CIFS case, user impersonation and authentication bypass.