CVE-2026-3449 Affecting librechat package, versions <0.8.3-r0


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.01% (3rd percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-LIBRECHAT-15449925
  • published11 Mar 2026
  • disclosed3 Mar 2026

Introduced: 3 Mar 2026

NewCVE-2026-3449  (opens in a new tab)

How to fix?

Upgrade Chainguard librechat to version 0.8.3-r0 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.

Versions of the package @tootallnate/once before 3.0.1 are vulnerable to Incorrect Control Flow Scoping in promise resolving when AbortSignal option is used. The Promise remains in a permanently pending state after the signal is aborted, causing any await or .then() usage to hang indefinitely. This can cause a control-flow leak that can lead to stalled requests, blocked workers, or degraded application availability.

CVSS Base Scores

version 3.1