Arbitrary Code Injection The advisory has been revoked - it doesn't affect any version of package librechat (opens in a new tab)
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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Start learning- Snyk IDSNYK-CHAINGUARDLATEST-LIBRECHAT-14888514
- published7 Jan 2026
- disclosed5 Nov 2025
Introduced: 5 Nov 2025
CVE-2025-12735 (opens in a new tab)Amendment
The Chainguard security team deemed this advisory irrelevant for Chainguard:latest.
NVD Description
Note: Versions mentioned in the description apply only to the upstream librechat package and not the librechat package as distributed by Chainguard.
The expr-eval library is a JavaScript expression parser and evaluator designed to safely evaluate mathematical expressions with user-defined variables. However, due to insufficient input validation, an attacker can pass a crafted context object or use MEMBER of the context object into the evaluate() function and trigger arbitrary code execution.
References
- https://github.com/advisories/GHSA-jc85-fpwf-qm7x
- https://github.com/jorenbroekema/expr-eval
- https://github.com/silentmatt/expr-eval
- https://github.com/silentmatt/expr-eval/pull/288
- https://kb.cert.org/vuls/id/263614
- https://www.npmjs.com/package/expr-eval
- https://www.npmjs.com/package/expr-eval-fork
- https://www.kb.cert.org/vuls/id/263614
- https://github.com/jorenbroekema/expr-eval/blob/460b820ba01c5aca6c5d84a7d4f1fa5d1913c67b/test/security.js