Description
In OCaml opam before 2.5.1, a .install field containing a destination filepath can use ../ to reach a parent directory.
Published: 2026-04-16
Score: 7.3 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-4541-1 opam security update
Debian DSA Debian DSA DSA-6216-1 opam security update
Ubuntu USN Ubuntu USN USN-8256-1 opam vulnerability
History

Tue, 16 Jun 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 15 Jun 2026 19:30:00 +0000

Type Values Removed Values Added
References

Tue, 21 Apr 2026 10:30:00 +0000

Type Values Removed Values Added
References

Sat, 18 Apr 2026 00:15:00 +0000

Type Values Removed Values Added
Title Path Traversal in opam .install Files Enables Arbitrary File Modification ocaml-opam: path traversal via the .install field
References
Metrics threat_severity

None

threat_severity

Important


Fri, 17 Apr 2026 08:15:00 +0000

Type Values Removed Values Added
First Time appeared Ocaml
Ocaml ocaml
Vendors & Products Ocaml
Ocaml ocaml

Fri, 17 Apr 2026 03:15:00 +0000

Type Values Removed Values Added
Title Path Traversal in opam .install Files Enables Arbitrary File Modification

Thu, 16 Apr 2026 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 16 Apr 2026 18:00:00 +0000

Type Values Removed Values Added
Description In OCaml opam before 2.5.1, a .install field containing a destination filepath can use ../ to reach a parent directory.
Weaknesses CWE-24
References
Metrics cvssV3_1

{'score': 7.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L'}


Subscriptions

Debian Debian Linux
Ocaml Ocaml Opam
Redhat Enterprise Linux
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-07-15T01:00:03.411Z

Reserved: 2026-04-16T17:32:39.584Z

Link: CVE-2026-41082

cve-icon Vulnrichment

Updated: 2026-04-21T09:32:52.152Z

cve-icon NVD

Status : Analyzed

Published: 2026-04-16T18:16:45.980

Modified: 2026-07-15T02:21:12.860

Link: CVE-2026-41082

cve-icon Redhat

Severity : Important

Publid Date: 2026-04-16T17:32:40Z

Links: CVE-2026-41082 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-08-14T04:15:03Z

Weaknesses