Improper Validation of Specified Quantity in Input Affecting librechat package, versions <0.8.4-r6
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-CHAINGUARDLATEST-LIBRECHAT-16635134
- published11 May 2026
- disclosed13 May 2026
Introduced: 11 May 2026
CVE-2026-44459 (opens in a new tab)How to fix?
Upgrade Chainguard librechat to version 0.8.4-r6 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream librechat package and not the librechat package as distributed by Chainguard.
See How to fix? for Chainguard relevant fixed versions and status.
Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.18, improper validation of the JWT NumericDate claims exp, nbf, and iat in hono/utils/jwt allows tokens with non-spec-compliant claim values to silently bypass time-based checks. This issue is not exploitable by an anonymous attacker; it only manifests when a malformed claim value reaches verify() — typically when the application itself issues such tokens, or when the signing key is otherwise under attacker control. This vulnerability is fixed in 4.12.18.