CVE-2026-31945 in danny-avila LibreChatinfo

Zusammenfassung (Englisch)

LibreChat is a ChatGPT clone with additional features. Versions 0.8.2-rc2 through 0.8.2 are vulnerable to a server-side request forgery (SSRF) attack when using agent actions or MCP. Although a previous SSRF vulnerability (https://github.com/danny-avila/LibreChat/security/advisories/GHSA-rgjq-4q58-m3q8) was reported and patched, the fix only introduced hostname validation. It does not verify whether DNS resolution results in a private IP address. As a result, an attacker can still bypass the protection and gain access to internal resources, such as an internal RAG API or cloud instance metadata endpoints. Version 0.8.3-rc1 contains a patch.

Zuständig

GitHub_M

Reservieren

10.03.2026

Veröffentlichung

27.03.2026

Einträge

VulDB provides additional information and datapoints for this CVE:

ID	Schwachstelle	CWE	Aus	Mas	CVE
354045	danny-avila LibreChat DNS Resolution erweiterte Rechte	918	Nicht definiert	Offizieller Fix	CVE-2026-31945

Beschreibung

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