Red Hat Security Advisory

RHSA-2026:42946

rhc-worker-playbook security, bug fix, and enhancement update

Released 2026-07-21 · Red Hat rating Important · View on Red Hat →

Fixed in

TI-2026-30787 CVE-2026-42504 · GHSA-h524-452v-82p9

MEDIUM 40

Decoding a maliciously-crafted MIME header containing many invalid encoded-words can consume excessive CPU.

CVSS 3.1HIGH 7.5 Network No auth No interaction EPSS 0.0056 Published 2026-06-02 Partial fix · 1.25.11, 1.26.4 CWE-407

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-2026-10215 CVE-2026-11837 · GHSA-49qh-h4vj-mrgf

LOW 33

A local privilege escalation vulnerability was found in the ansible.posix authorized_key module.

CVSS 3.1HIGH 7.3 Local Low privileges User interaction EPSS 0.00163 Published 2026-06-10 Partial fix · 0.2.10-1.el10_2, 0.2.3-6.el10_0.2 +2 CWE-59

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