critical9.8
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 validat…
Impact
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 products
| Vendor | Product | Affected versions |
|---|---|---|
| Rocket.Chat | Rocket.Chat | before 7.10.14 from 8.0.0 before 8.0.8 from 8.1.0 before 8.1.7 from 8.2.0 before 8.2.7 from 8.3.0 before 8.3.7 from 8.4.0 before 8.4.5 |