HIGH7.3
GHSA-8gw3-rxh4-v6jx
expr-eval vulnerable to Prototype Pollution
Quick fix
GHSA-8gw3-rxh4-v6jx — expr-eval-fork: upgrade to the fixed version with the command below.
npm install expr-eval-fork@2.0.2Details
npm package `expr-eval` is vulnerable to Prototype Pollution. An attacker with access to express eval interface can use JavaScript prototype-based inheritance model to achieve arbitrary code execution. The npm expr-eval-fork package resolves this issue.
Are you affected?
Enter the version of the package you're using.
Affected packages
npm/expr-eval
Introduced in:
0No fixed version published yet for expr-eval (npm). Pin to a known-safe version or switch to an alternative.
References
- https://nvd.nist.gov/vuln/detail/CVE-2025-13204[ADVISORY]
- https://github.com/silentmatt/expr-eval/pull/252/files[WEB]
- https://github.com/jorenbroekema/expr-eval/commit/6c475a118643ae0efe012de283e932fb8b74324b[WEB]
- https://github.com/silentmatt/expr-eval/commit/6e889e0e75c50ac37d70c35388602025650e0c50[WEB]
- https://github.com/SECCON/SECCON2022_final_CTF/blob/main/jeopardy/web/babybox/solver/solver.py[WEB]
- https://github.com/jorenbroekema/expr-eval[WEB]
- https://github.com/silentmatt/expr-eval[PACKAGE]
- https://github.com/vladko312/extras/blob/f549d505af300fd74a01b46fab2102990ff1c14d/expr-eval.py[WEB]
- https://www.huntr.dev/bounties/1-npm-expr-eval[WEB]
- https://www.npmjs.com/package/expr-eval-fork[WEB]