Directory Traversal Affecting librechat package, versions <0.8.4-r5


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.02% (6th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-LIBRECHAT-16113242
  • published21 Apr 2026
  • disclosed8 Apr 2026

Introduced: 8 Apr 2026

NewCVE-2026-39407  (opens in a new tab)
CWE-22  (opens in a new tab)

How to fix?

Upgrade Chainguard librechat to version 0.8.4-r5 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 4.12.12, a path handling inconsistency in serveStatic allows protected static files to be accessed by using repeated slashes (//) in the request path. When route-based middleware (e.g., /admin/*) is used for authorization, the router may not match paths containing repeated slashes, while serveStatic resolves them as normalized paths. This can lead to a middleware bypass. This vulnerability is fixed in 4.12.12.

CVSS Base Scores

version 3.1