UnratedRed Hat & Ubuntu Linux
opam vulnerability
USN-8256-1 Published May 7, 2026
CVE-2026-41082
Affected products & platforms
Red Hat & Ubuntu LinuxUnclassified
Summary
Andrew Nesbitt discovered that opam did not properly validate file destination paths in package install files. An attacker could use this issue to bypass sandbox protections and write files to arbitrary locations, possibly leading to arbitrary code execution. Affected Ubuntu releases: 26.04, 25.10, 24.04, 22.04, 20.04. CVEs: CVE-2026-41082.
Affected versions
- Ubuntu 26.04
- Ubuntu 25.10
- Ubuntu 24.04
- Ubuntu 22.04
- Ubuntu 20.04
Official advisory · medium-confidence parse· fetched 3 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 3 hours ago·verify at source
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