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

Fixed packages 1

Vulnerabilities 1

• Medium 4.4
  CVE-2026-18477

  Tar: tar: toctou in incremental dumpdir 'x' rename handling allows restore path escape

  A TOCTOU (Time-of-Check Time-of-Use) vulnerability in GNU tar's incremental dumpdir 'X' rename handling allows a local attacker with write access to a directory being backed up to influence the restore process if the attacker has access to the system where th…

  Red Hat Red Hat Enterprise Linux 9 Red Hat Enterprise Linux 8 Red Hat Enterprise Linux 7 Linux Debian Ubuntu Azure Linux Wolfi
  Aug 3, 2026

References

• report
  https://access.redhat.com/security/cve/CVE-2026-18477
• article
  https://access.redhat.com/security/updates/classification/
• article
  https://images.redhat.com/
• advisory
  https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_49361.json
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2509735
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-18477
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-18477