RHSA-2026:38493HighCVSS 7.8

Red Hat Security Advisory: buildah security update

Published
July 13, 2026
Last Modified
August 3, 2026

🔗 CVE IDs covered (1)

CVE-2026-39822 →

📋 Description

CVE-2026-39822 — golang: Go os.Root: Symlink following vulnerability allows directory traversal

🎯 Affected products22

  • Red Hat Enterprise Linux AppStream (v. 9)
  • buildah-2:1.43.1-4.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • buildah-2:1.43.1-4.el9_8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • buildah-2:1.43.1-4.el9_8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • buildah-2:1.43.1-4.el9_8.src as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • buildah-2:1.43.1-4.el9_8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • buildah-debuginfo-2:1.43.1-4.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • buildah-debuginfo-2:1.43.1-4.el9_8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • buildah-debuginfo-2:1.43.1-4.el9_8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • buildah-debuginfo-2:1.43.1-4.el9_8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • buildah-debugsource-2:1.43.1-4.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • buildah-debugsource-2:1.43.1-4.el9_8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • buildah-debugsource-2:1.43.1-4.el9_8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • buildah-debugsource-2:1.43.1-4.el9_8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • buildah-tests-2:1.43.1-4.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • buildah-tests-2:1.43.1-4.el9_8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • buildah-tests-2:1.43.1-4.el9_8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • buildah-tests-2:1.43.1-4.el9_8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • buildah-tests-debuginfo-2:1.43.1-4.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • buildah-tests-debuginfo-2:1.43.1-4.el9_8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • buildah-tests-debuginfo-2:1.43.1-4.el9_8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • buildah-tests-debuginfo-2:1.43.1-4.el9_8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9)

✅ 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: There is no mitigation for this issue other than updating the Go toolchain to Go 1.25.12 or Go 1.26.5. Programs compiled with Go >= 1.24 that do not use the os.Root API are not affected by this vulnerability. The os.Root API was introduced in Go 1.24. Go versions prior to 1.24 are not affected. This issue is fixed in Go 1.25.12 and Go 1.26.5.

🔗 References (4)