What’s Vulnerable › Vulnerabilities

CVE-2026-41082

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-16 · updated 2026-10-26
• Weakness: CWE-24

Description

In OCaml opam before 2.5.1, a .install field containing a destination filepath can use ../ to reach a parent directory.

Affected products

• Debian Linux: 11.0
• OCaml opam: before 2.5.1 — fixed in 2.5.1
• Red Hat Enterprise Linux: 10.0

How to fix

Upgrade to a fixed version: OCaml opam 2.5.1. Check the vendor advisory for mitigations.

References

• https://github.com/ocaml/opam/pull/6897
• https://github.com/ocaml/opam/releases/tag/2.5.1
• https://osv.dev/vulnerability/OSEC-2026-03
• https://lists.debian.org/debian-lts-announce/2026/04/msg00021.html
• https://access.redhat.com/security/cve/CVE-2026-41082
• https://bugzilla.redhat.com/show_bug.cgi?id=2459003
• https://osv.dev/vulnerability/OSEC-2026-03
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-41082.json

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