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Vulnerabilities

Vulnerability · CVE-2026-41082

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

Published Apr 16, 2026 · catalog updated Jul 15, 2026 · In OCaml opam before

Check if you run it

No confirmed exploitation is on record for CVE-2026-41082. EPSS is 0.22%. Act only if a listed version of In OCaml opam before is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (In OCaml opam before).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.22%
Remediation
Advisory link
Affected products
cpe debian/debian linux · cpe ocaml/opam · cpe redhat/enterprise linux

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

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe debian/debian linux11.0
  • cpe ocaml/opamversion unspecified
  • cpe redhat/enterprise linux10.0

How to fix CVE-2026-41082

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-41082. EPSS is 0.22%. Act only if a listed version of In OCaml opam before is installed.

Which versions are affected?

Compare what you have installed with debian/debian linux 11.0; redhat/enterprise linux 10.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-22: Path Traversal; CWE-24. EPSS 0.22%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 16, 2026 · NIST NVD

    Detected

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

  2. Jul 15, 2026 · NIST NVD

    Updated

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

Sources

  • CVE.orgVulnerability recordCVE-2026-41082

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-41082

    30-day exploitation probability 0.2%

    first.org
  • NIST NVDVulnerability recordCVE-2026-41082

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

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.