RHSA-2026:54391HighCVSS 7.3

Red Hat Security Advisory: ruby security update

Published
August 12, 2026
Last Modified
August 26, 2026

🔗 CVE IDs covered (1)

CVE-2026-47242 →

📋 Description

CVE-2026-47242 — net-imap: Net::IMAP: Arbitrary IMAP command injection due to improper input validation

🎯 Affected products97

  • Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • ruby-0:3.3.12-11.el10_0.3.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • ruby-0:3.3.12-11.el10_0.3.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • ruby-0:3.3.12-11.el10_0.3.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • ruby-0:3.3.12-11.el10_0.3.src as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • ruby-0:3.3.12-11.el10_0.3.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • ruby-bundled-gems-0:3.3.12-11.el10_0.3.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • ruby-bundled-gems-0:3.3.12-11.el10_0.3.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • ruby-bundled-gems-0:3.3.12-11.el10_0.3.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • ruby-bundled-gems-0:3.3.12-11.el10_0.3.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • ruby-bundled-gems-debuginfo-0:3.3.12-11.el10_0.3.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • ruby-bundled-gems-debuginfo-0:3.3.12-11.el10_0.3.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • ruby-bundled-gems-debuginfo-0:3.3.12-11.el10_0.3.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • ruby-bundled-gems-debuginfo-0:3.3.12-11.el10_0.3.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • ruby-debuginfo-0:3.3.12-11.el10_0.3.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • ruby-debuginfo-0:3.3.12-11.el10_0.3.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • ruby-debuginfo-0:3.3.12-11.el10_0.3.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • ruby-debuginfo-0:3.3.12-11.el10_0.3.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • ruby-debugsource-0:3.3.12-11.el10_0.3.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • ruby-debugsource-0:3.3.12-11.el10_0.3.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • ruby-debugsource-0:3.3.12-11.el10_0.3.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • ruby-debugsource-0:3.3.12-11.el10_0.3.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • ruby-default-gems-0:3.3.12-11.el10_0.3.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • ruby-devel-0:3.3.12-11.el10_0.3.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • ruby-devel-0:3.3.12-11.el10_0.3.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • ruby-devel-0:3.3.12-11.el10_0.3.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • ruby-devel-0:3.3.12-11.el10_0.3.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • ruby-doc-0:3.3.12-11.el10_0.3.noarch as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • ruby-libs-0:3.3.12-11.el10_0.3.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • +67 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 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. Update to the fixed version of affected product.

🔗 References (4)