Directory Traversal Vulnerability in OCaml opam Software
CVE-2026-41082

7.3HIGH

Key Information:

Vendor

Ocaml

Status
Opam
Vendor
CVE Published:
16 April 2026

What is CVE-2026-41082?

A directory traversal vulnerability exists in OCaml opam versions before 2.5.1, where a maliciously crafted .install file can exploit the destination filepath using ../ sequences. This may allow unauthorized access to files outside the intended directory, potentially leading to data exposure or manipulation.

Affected Version(s)

opam 0 < 2.5.1

References

https://github.com/ocaml/opam/releases/tag/2.5.1
https://github.com/ocaml/opam/pull/6897

CVSS V3.1

Score:
7.3
Severity:
HIGH
Confidentiality:
Low
Integrity:
High
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.