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VULNERABILITIES

CVE-2026-58066 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:9.8 CRITICALVector:CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/RocketChat/Rocket.Chat/pull/41233 [email protected]Issue Tracking
https://hackerone.com/reports/3827674 [email protected]Third Party AdvisoryIssue Tracking

Weakness Enumeration

CWE-IDCWE NameSource
CWE-287Improper Authentication[email protected]

Affected Products

ProductVersions
rocket.chat rocket.chat
< 7.10.14
>= 8.0.0, < 8.0.8
>= 8.1.0, < 8.1.7
>= 8.2.0, < 8.2.7
>= 8.3.0, < 8.3.7

CPE

  • cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

4 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-58066
NVD Published Date:
Jul 30, 2026
NVD Last Modified:
Aug 25, 2026
Source:
[email protected]
CVE-2026-58066 Details - Not Deferred