CVE-2026-22252

Name: CVE-2026-22252
Creator: NVD / NIST
Published: 2026-01-12T19:16:03.2+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.9/10EPSS 3.68%

Last modified Jun 17, 2026

CVE-2026-22252 is a critical-severity vulnerability rated 9.9/10 on the CVSS scale. LibreChat is a ChatGPT clone with additional features. Prior to v0.8.2-rc2, LibreChat's MCP stdio transport accepts arbitrary commands without validation, allowing any authenticated user to execute shell commands as root inside the container through a single API request. EPSS estimates a 3.68% chance of exploitation in the next 30 days.

Description

LibreChat is a ChatGPT clone with additional features. Prior to v0.8.2-rc2, LibreChat's MCP stdio transport accepts arbitrary commands without validation, allowing any authenticated user to execute shell commands as root inside the container through a single API request. This vulnerability is fixed in v0.8.2-rc2.

Metrics

CVSS 3.1

9.9/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS Probability

3.68%

88.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-285

Affected Software

Vendor	Product	Versions	Update
Librechat	Librechat	0.8.2	Rc1

References

https://github.com/danny-avila/LibreChat/commit/211b39f3113d4e6ecab84be0a83f4e9c9dea127fPatch
https://github.com/danny-avila/LibreChat/security/advisories/GHSA-cxhj-j78r-p88fExploit, Vendor Advisory

Timeline

Published: Jan 12, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-22252?

How severe is CVE-2026-22252?

CVE-2026-22252 has a CVSS score of 9.9/10 (CRITICAL severity). The EPSS model estimates a 3.68% probability of exploitation in the next 30 days.

How do I fix CVE-2026-22252?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-22252?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST