CRITICALVulnerability
CVE-2026-58066
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.
Properties
- severity
- CRITICAL
- score
- 9.8
- cve_id
- CVE-2026-58066
- vector
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- published_at
- 2026-07-30T06:25:55.540
- last_modified
- 2026-08-25T18:12:04.197
Related Entities (3)
AFFECTS_PRODUCT (1)
→[Product]
HAS_WEAKNESS (1)
→[Weakness]Improper Authentication
DESCRIBED_BY (1)
→[Source]NVD
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