RHSA-2026:74586HighCVSS 7.5

Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update

Published
October 1, 2026
Last Modified
October 2, 2026

🔗 CVE IDs covered (4)

CVE-2026-102821 →CVE-2026-102823 →CVE-2026-102824 →CVE-2026-102825 →

📋 Description

CVE-2026-102821 — russh: russh: Denial of Service via unbounded memory exhaustion during stalled key renegotiation CVE-2026-102823 — russh: russh: State corruption via unverified SSH channel identifiers CVE-2026-102824 — russh: russh: Cryptographic fallback bypass via missing public key validation CVE-2026-102825 — russh: russh: Authentication attempt limit bypass via unenforced maximum authentication attempts

🎯 Affected products8

  • Red Hat Hardened Images
  • openshell-0:0.1.2-0.2.hum1@aarch64 as a component of Red Hat Hardened Images
  • openshell-0:0.1.2-0.2.hum1@src as a component of Red Hat Hardened Images
  • openshell-0:0.1.2-0.2.hum1@x86_64 as a component of Red Hat Hardened Images
  • openshell-gateway-0:0.1.2-0.2.hum1@aarch64 as a component of Red Hat Hardened Images
  • openshell-gateway-0:0.1.2-0.2.hum1@x86_64 as a component of Red Hat Hardened Images
  • python3-openshell-0:0.1.2-0.2.hum1@aarch64 as a component of Red Hat Hardened Images
  • python3-openshell-0:0.1.2-0.2.hum1@x86_64 as a component of Red Hat Hardened Images

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/ Workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

🔗 References (8)