CVE-2026-41082
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Directory Traversal in OCaml opam .install Field Before

Publication date: 2026-04-16

Last updated on: 2026-06-15

Assigner: MITRE

Description
In OCaml opam before 2.5.1, a .install field containing a destination filepath can use ../ to reach a parent directory.
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Meta Information
Published
2026-04-16
Last Modified
2026-06-15
Generated
2026-06-16
AI Q&A
2026-04-16
EPSS Evaluated
2026-06-15
NVD
CVE-2026-41082
EUVD
EUVD-2026-23288
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
ocaml opam to 2.5.1 (exc)
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-24 The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize "../" sequences that can resolve to a location that is outside of that directory.
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Executive Summary

This vulnerability exists in OCaml opam versions before 2.5.1. It involves the .install field, which specifies a destination filepath. The issue is that this field can include "../" sequences to traverse to a parent directory, potentially allowing files to be installed outside the intended directory.

Impact Analysis

The vulnerability can lead to unauthorized file placement outside the intended directory structure. This may result in overwriting or placing files in sensitive locations, potentially causing integrity issues or enabling further exploitation.

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