Red Hat Security Advisory

RHSA-2026:54168

rhc-worker-playbook security update

Released 2026-08-12 · Red Hat rating Important · View on Red Hat →

Fixed in

Red Hat Enterprise Linux AppStream EUS (v. 10.0) rhc-worker-playbook-0.2.3-6.el10_0

TI-2026-26183 CVE-2026-33811 · GHSA-497x-jcxf-m478

MEDIUM 40

When using LookupCNAME with the cgo DNS resolver, a very long CNAME response can trigger a double-free of C memory and a crash.

CVSS 3.1HIGH 7.5 Network No auth No interaction EPSS 0.00875 Published 2026-05-07 Partial fix · 1.25.10, 1.26.3 CWE-415

TI-2026-21595 CVE-2026-27145 · GHSA-4279-q6mj-392r

LOW 30

(*x509.Certificate).VerifyHostname previously called matchHostnames in a loop over all DNS Subject Alternative Name (SAN) entries.

CVSS 3.1MEDIUM 6.5 Network No auth No interaction EPSS 0.00591 Published 2026-06-02 Partial fix · 1.25.11, 1.26.4