Improper Validation of Syntactic Correctness of Input Affecting librechat package, versions <0.8.0-r1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.03% (10th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-LIBRECHAT-14888581
  • published7 Jan 2026
  • disclosed14 Nov 2025

Introduced: 14 Nov 2025

CVE-2025-13033  (opens in a new tab)
CWE-1286  (opens in a new tab)

How to fix?

Upgrade Chainguard librechat to version 0.8.0-r1 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.

A vulnerability was identified in the email parsing library due to improper handling of specially formatted recipient email addresses. An attacker can exploit this flaw by crafting a recipient address that embeds an external address within quotes. This causes the application to misdirect the email to the attacker's external address instead of the intended internal recipient. This could lead to a significant data leak of sensitive information and allow an attacker to bypass security filters and access controls.

CVSS Base Scores

version 3.1