Is CVE-2026-31945 actively exploited?

No active exploitation of CVE-2026-31945 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-31945 be exploited remotely?

Yes. CVE-2026-31945 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-31945?

CVE-2026-31945 has a CVSS score of 7.7 (HIGH).

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HIGH

CVE-2026-31945

CWE-918Published: March 27, 2026· Updated: Mar 30, 2026

7.7

CVSS v3.1

EPSS:0.03%probability of exploitation in 30 daysPercentile:9.0th

Official Description

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.

NVD Source

Technical Analysis

CVE-2026-31945 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 7.7.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.