UnratedRed Hat & Ubuntu Linux
tar vulnerability
USN-8477-1 Published Jun 25, 2026
CVE-2026-5704
Affected products & platforms
Red Hat & Ubuntu LinuxUnclassified
Summary
It was discovered that tar incorrectly handled certain crafted archive files. An attacker could possibly use this to inject hidden files with attacker-controlled content, bypassing pre-extraction inspection mechanisms. Affected Ubuntu releases: 26.04, 24.04, 22.04, 20.04, 18.04, 16.04, 14.04. CVEs: CVE-2026-5704.
Affected versions
- Ubuntu 26.04
- Ubuntu 24.04
- Ubuntu 22.04
- Ubuntu 20.04
- Ubuntu 18.04
- Ubuntu 16.04
- Ubuntu 14.04
Official advisory · medium-confidence parse· fetched 4 hours ago·verify at source
Mitigation checklist
Recommended fix / mitigation
- Apply available updates: `sudo apt update && sudo apt upgrade` (a standard system update installs the fix).
Official advisory · medium-confidence parse· fetched 4 hours ago·verify at source
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