CVE-2026-41082
CVE-2026-41082 is a high-severity vulnerability in Ocaml Opam with a CVSS 3.x base score of 7.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-24.
Key facts
- Severity: High (CVSS 3.x base score 7.3)
- EPSS exploit prediction: 0% (11th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-23288
- Weakness: CWE-24
- Affected product: Ocaml Opam
- Published:
- Last modified:
Description
In OCaml opam before 2.5.1, a .install field containing a destination filepath can use ../ to reach a parent directory.
Frequently asked questions
- What is CVE-2026-41082?
- In OCaml opam before 2.5.1, a .install field containing a destination filepath can use ../ to reach a parent directory.
- How severe is CVE-2026-41082?
- CVE-2026-41082 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability low.
- Is CVE-2026-41082 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-41082?
- CVE-2026-41082 primarily affects Ocaml Opam. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2026-41082?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2026-41082 have an EU (EUVD) identifier?
- Yes. CVE-2026-41082 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-23288.
- When was CVE-2026-41082 published?
- CVE-2026-41082 was published on 2026-04-16 and last updated on 2026-07-08.
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://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-41082.json
Affected products (3)
- cpe:2.3:a:ocaml:opam:*:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*
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