RHSA-2026:20606HighCVSS 9.1

Red Hat Security Advisory: ruby4.0 security update

Published
May 26, 2026
Last Modified
November 5, 2026

🔗 CVE IDs covered (2)

CVE-2026-33210 →CVE-2026-41316 →

📋 Description

CVE-2026-33210 — ruby/json: Ruby JSON: Denial of Service or Information Disclosure via format string injection CVE-2026-41316 — erb: ERB: Arbitrary code execution via deserialization bypass

🎯 Affected products36

  • Red Hat Enterprise Linux AppStream (v. 10)
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)
  • ruby4.0-0:4.0.3-34.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • ruby4.0-0:4.0.3-34.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • ruby4.0-0:4.0.3-34.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • ruby4.0-0:4.0.3-34.el10_2.src as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • ruby4.0-0:4.0.3-34.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • ruby4.0-debuginfo-0:4.0.3-34.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • ruby4.0-debuginfo-0:4.0.3-34.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • ruby4.0-debuginfo-0:4.0.3-34.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • ruby4.0-debuginfo-0:4.0.3-34.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • ruby4.0-debugsource-0:4.0.3-34.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • ruby4.0-debugsource-0:4.0.3-34.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • ruby4.0-debugsource-0:4.0.3-34.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • ruby4.0-debugsource-0:4.0.3-34.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • ruby4.0-devel-0:4.0.3-34.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • ruby4.0-devel-0:4.0.3-34.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • ruby4.0-devel-0:4.0.3-34.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • ruby4.0-devel-0:4.0.3-34.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • ruby4.0-doc-0:4.0.3-34.el10_2.noarch as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)
  • ruby4.0-rubygem-mysql2-0:0.5.7-34.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • ruby4.0-rubygem-mysql2-0:0.5.7-34.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • ruby4.0-rubygem-mysql2-0:0.5.7-34.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • ruby4.0-rubygem-mysql2-0:0.5.7-34.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • ruby4.0-rubygem-mysql2-debuginfo-0:0.5.7-34.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • ruby4.0-rubygem-mysql2-debuginfo-0:0.5.7-34.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • ruby4.0-rubygem-mysql2-debuginfo-0:0.5.7-34.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • ruby4.0-rubygem-mysql2-debuginfo-0:0.5.7-34.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • ruby4.0-rubygem-pg-0:1.6.3-34.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • ruby4.0-rubygem-pg-0:1.6.3-34.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • +6 more not shown

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

🔗 References (5)