Skip to content
OpenAdvisories
High RHSA-2026:66421 2 CVEs

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

Published Sep 11, 2026 · Updated Oct 20, 2026

Fixed packages 1

ReleasePackageFixed in
Red Hat · Hardened Images 1 hummingbird:1 trivy 0:0.74.0-0.2.hum1

Vulnerabilities 2

  • High 7.1

    go-git: Worktree operations may follow symlinks

    go-git is an extensible git implementation library written in pure Go. Prior to 5.19.2 and 6.0.0-alpha.5, worktree operations (including checkout, status, and add) resolve symbolic links inside the working tree without confining resolution to the worktree bou…

  • Medium 6.9

    Malicious client can bypass destination directory validation on local sources upload

    A custom client can produce such an upload request to the BuildKit daemon that files can escape from the BuildKit-controlled state directory. The client needs to have valid permissions to access the BuildKit control API to issue builds, e.g., bypass authentic…

References

  • report
    https://access.redhat.com/security/cve/CVE-2026-71556
  • article
    https://access.redhat.com/security/updates/classification/
  • article
    https://images.redhat.com/
  • report
    https://access.redhat.com/security/cve/CVE-2026-15789
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_66421.json
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2503742
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-15789
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-15789
  • article
    https://github.com/moby/buildkit/security/advisories/GHSA-g2h8-426c-7976
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2512562
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-71556
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-71556
  • article
    https://github.com/go-git/go-git/commit/008a78f2dd86f52544ddff8b8e8ddeecdf3f7aab
  • article
    https://github.com/go-git/go-git/commit/661d1c7f101d34e002a3cfcf8dbea5b7421d07ac
  • article
    https://github.com/go-git/go-git/releases/tag/v5.19.2
  • article
    https://github.com/go-git/go-git/releases/tag/v6.0.0-alpha.5
  • article
    https://github.com/go-git/go-git/security/advisories/GHSA-hc8v-wwc9-vgxm