CVE-2026-58066

Published: Jul 30, 2026Modified: Aug 25, 2026

9.8

Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability: 3.9 / Impact: 5.9

Source: support@hackerone.com (Secondary)

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.

Affected (8)

Products: Rocket.chat: Rocket.chat

Rocket.chat

1 product

Rocket.chat

Configuration A

8 vulnerable

Vulnerable Software	Affected Versions
Rocket.chat Rocket.chat	Before 7.10.14
Rocket.chat Rocket.chat	From 8.0.0 to 8.0.8
Rocket.chat Rocket.chat	From 8.1.0 to 8.1.7
Rocket.chat Rocket.chat	From 8.2.0 to 8.2.7
Rocket.chat Rocket.chat	From 8.3.0 to 8.3.7
Rocket.chat Rocket.chat	From 8.4.0 to 8.4.5
Rocket.chat Rocket.chat	From 8.5.0 to 8.5.2
Rocket.chat Rocket.chat	From 8.6.0 to 8.6.1

Related CWEs

CWE-287

Improper Authentication

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

References (2)

https://github.com/RocketChat/Rocket.Chat/pull/41233

Source: support@hackerone.com

Issue Tracking

https://hackerone.com/reports/3827674

Source: support@hackerone.com

Third Party AdvisoryIssue Tracking

Timeline

No history available yet.