CVE-2026-57825 PUBLISHED

Assigner: mitre
Reserved: 25.06.2026 Published: 09.09.2026 Updated: 09.09.2026

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.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N
CVSS Score: 5.7

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	None
Privileges Required	Low	Integrity Impact	High
User Interaction	Required	Availability Impact	None

CVSS 3.1

Product Status

Vendor	OCaml
Product	opam
Versions	Default: unaffected affected from 0 to 2.5.2 (excl.)

References

https://github.com/ocaml/opam/releases
https://osv.dev/vulnerability/OSEC-2026-10

Problem Types

CWE-61 UNIX Symbolic Link (Symlink) Following CWE