What is GHSA-gr4w-63r3-8h38?

GHSA-gr4w-63r3-8h38 is a security advisory published by GitHub Security Advisories with Medium severity. Mattermost Plugins versions \u003c=11.6 10.18.11 11.3.6 11.6.5.0 fail to sanitize error responses from...

Which CVE IDs does GHSA-gr4w-63r3-8h38 cover?

GHSA-gr4w-63r3-8h38 covers the following CVE IDs: CVE-2026-9699. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-gr4w-63r3-8h38?

GHSA-gr4w-63r3-8h38 has a CVSS v3 base score of 6.8, published by GitHub Security Advisories.

GHSA-gr4w-63r3-8h38MediumCVSS 6.8

Mattermost Plugins versions <=11.6 10.18.11 11.3.6 11.6.5.0 fail to sanitize error responses from...

Vendor

GitHub Security Advisories

Published

June 26, 2026

Last Modified

June 26, 2026

🔗 CVE IDs covered (1)

CVE-2026-9699 →

📋 Description

Mattermost Plugins versions <=11.6 10.18.11 11.3.6 11.6.5.0 fail to sanitize error responses from the OpenAI API before logging, which allows a user with access to server logs or support packets to obtain a valid or partially reconstructable OpenAI API key via inspection of mattermost.log entries generated during authentication failures. Mattermost Advisory ID: MMSA-2026-00609

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-9699
https://mattermost.com/security-updates
https://github.com/advisories/GHSA-gr4w-63r3-8h38