VulnerabilityAnalyzed
CVE-2026-41082
In OCaml opam before 2.5.1, a .install field containing a destination filepath can use ../ to reach a parent directory.
HIGH 7.8EPSS 0.21%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.21%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In OCaml opam before 2.5.1, a .install field containing a destination filepath can use ../ to reach a parent directory.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 0.21% probability · 10th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-24, CWE-22
- Affected
- ocaml/opam · debian/debian linux · redhat/enterprise linux
- Source
- cve@mitre.org
EPSS 0.2% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/ocaml/opam/pull/6897Issue Tracking, Patch
- https://github.com/ocaml/opam/releases/tag/2.5.1Release Notes
- https://osv.dev/vulnerability/OSEC-2026-03Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2026/04/msg00021.htmlMailing List, Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2026-41082Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2459003Issue Tracking
- https://osv.dev/vulnerability/OSEC-2026-03Third Party Advisory
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-41082.jsonThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.