CVE-2026-2739 Affecting librechat package, versions <0.8.2-r6


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.02% (6th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-LIBRECHAT-15367629
  • published2 Mar 2026
  • disclosed20 Feb 2026

Introduced: 20 Feb 2026

CVE-2026-2739  (opens in a new tab)

How to fix?

Upgrade Chainguard librechat to version 0.8.2-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.

This affects versions of the package bn.js before 5.2.3. Calling maskn(0) on any BN instance corrupts the internal state, causing toString(), divmod(), and other methods to enter an infinite loop, hanging the process indefinitely.

CVSS Base Scores

version 3.1