| Name | CVE-2026-41082 |
| Description | In OCaml opam before 2.5.1, a .install field containing a destination filepath can use ../ to reach a parent directory. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-4541-1, DSA-6216-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| opam (PTS) | bullseye | 2.0.8-1 | vulnerable |
| bullseye (security) | 2.0.8-1+deb11u1 | fixed |
| bookworm | 2.1.2-1 | vulnerable |
| bookworm (security) | 2.1.2-1+deb12u1 | fixed |
| trixie | 2.3.0-1 | vulnerable |
| trixie (security) | 2.3.0-1+deb13u1 | fixed |
| forky, sid | 2.5.1-2 | fixed |
The information below is based on the following data on fixed versions.
Notes
https://github.com/ocaml/security-advisories/blob/main/advisories/2026/OSEC-2026-03.md