What is GHSA-58rp-9f6f-pw76?

GHSA-58rp-9f6f-pw76 is a security advisory published by GitHub Security Advisories with Medium severity. Mattermost versions 11.9.x \u003c= 11.9.1, 11.8.x \u003c= 11.8.5, 11.7.x \u003c= 11.7.10, 11.10.x \u003c= 11.10.1...

Which CVE IDs does GHSA-58rp-9f6f-pw76 cover?

GHSA-58rp-9f6f-pw76 covers the following CVE IDs: CVE-2026-93850. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-58rp-9f6f-pw76?

GHSA-58rp-9f6f-pw76 has a CVSS v3 base score of 6.5, published by GitHub Security Advisories.

GHSA-58rp-9f6f-pw76MediumCVSS 6.5

Mattermost versions 11.9.x <= 11.9.1, 11.8.x <= 11.8.5, 11.7.x <= 11.7.10, 11.10.x <= 11.10.1...

Vendor

GitHub Security Advisories

Published

October 26, 2026

Last Modified

October 26, 2026

🔗 CVE IDs covered (1)

CVE-2026-93850 →

📋 Description

Mattermost versions 11.9.x <= 11.9.1, 11.8.x <= 11.8.5, 11.7.x <= 11.7.10, 11.10.x <= 11.10.1 fail to bind the volume of text extracted from an uploaded PDF which allows an authenticated user to exhaust server memory and cause a denial of service via a crafted PDF whose compressed content stream expands into a very large amount of text.. Mattermost Advisory ID: MMSA-2026-00769

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-93850
https://mattermost.com/security-updates
https://github.com/advisories/GHSA-58rp-9f6f-pw76