CVE-2026-57825

Sandbox Bypass via Symlink Mishandling in opam .install Files

Published Sep 9, 2026 CVSS 3.1 · 5.7 Medium EPSS < 1% KEV · Not listed
Description
In the opam package before 2.5.2 for OCaml, the sandbox protection mechanism can be bypassed because symlinks are mishandled during use of .install files.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-4684-1 opam security update
Debian DSA Debian DSA DSA-6386-1 opam security update
History
Type Values Removed Values Added
Metrics ssvc

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

Type Values Removed Values Added
First Time appeared Ocaml
Ocaml opam
Vendors & Products Ocaml
Ocaml opam
Type Values Removed Values Added
Title Sandbox Bypass via Symlink Mishandling in opam .install Files
Type Values Removed Values Added
Description In the opam package before 2.5.2 for OCaml, the sandbox protection mechanism can be bypassed because symlinks are mishandled during use of .install files.
Weaknesses CWE-61
References
Metrics cvssV3_1

{'score': 5.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Sep 14, 2026, 3:41 PM
Reserved
Jun 25, 2026, 12:00 AM
Status
Deferred
Published
Sep 9, 2026, 4:18 AM
Modified
Sep 14, 2026, 4:17 PM