What is GHSA-f3wj-pr2w-q3fm?

GHSA-f3wj-pr2w-q3fm is a security advisory published by GitHub Security Advisories with Critical severity. Rocket.Chat's SAML SSO before versions 8.7.0, 8.6.1, 8.5.2, 8.4.5, 8.3.7, 8.2.7, 8.1.7, 8.0.8,...

Which CVE IDs does GHSA-f3wj-pr2w-q3fm cover?

GHSA-f3wj-pr2w-q3fm covers the following CVE IDs: CVE-2026-58066. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-f3wj-pr2w-q3fm?

GHSA-f3wj-pr2w-q3fm has a CVSS v3 base score of 9.8, published by GitHub Security Advisories.

GHSA-f3wj-pr2w-q3fmCriticalCVSS 9.8

Rocket.Chat's SAML SSO before versions 8.7.0, 8.6.1, 8.5.2, 8.4.5, 8.3.7, 8.2.7, 8.1.7, 8.0.8,...

Vendor

GitHub Security Advisories

Published

July 30, 2026

Last Modified

July 30, 2026

🔗 CVE IDs covered (1)

CVE-2026-58066 →

📋 Description

Rocket.Chat's SAML SSO before versions 8.7.0, 8.6.1, 8.5.2, 8.4.5, 8.3.7, 8.2.7, 8.1.7, 8.0.8, and 7.10.14 verified XML signatures but did not bind the validated signature to samlp:Response / saml:Assertion. An attacker could submit a wrapped document carrying forged identity attributes alongside any valid signature made by the trusted IdP certificate, and log in as an arbitrary user.

🔗 References (4)

https://nvd.nist.gov/vuln/detail/CVE-2026-58066
https://github.com/RocketChat/Rocket.Chat/pull/41233
https://hackerone.com/reports/3827674
https://github.com/advisories/GHSA-f3wj-pr2w-q3fm