Symlink Following Affecting opam package, versions <2.5.2-1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIANUNSTABLE-OPAM-17921848
- published10 Jul 2026
- disclosed9 Sept 2026
Introduced: 10 Jul 2026
CVE-2026-57825 (opens in a new tab)How to fix?
Upgrade Debian:unstable opam to version 2.5.2-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream opam package and not the opam package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
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.