CVE-2026-58066
critical · 9.8Rocket.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.
9.8
CVSS
0.2%
EPSS (exploit prob.)
15th
EPSS percentile
2026-07-30
Published
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-287
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| rocket.chat | rocket.chat | < 7.10.14 |
| rocket.chat | rocket.chat | >= 8.0.0, < 8.0.8 |
| rocket.chat | rocket.chat | >= 8.1.0, < 8.1.7 |
| rocket.chat | rocket.chat | >= 8.2.0, < 8.2.7 |
| rocket.chat | rocket.chat | >= 8.3.0, < 8.3.7 |
| rocket.chat | rocket.chat | >= 8.4.0, < 8.4.5 |
| rocket.chat | rocket.chat | >= 8.5.0, < 8.5.2 |
| rocket.chat | rocket.chat | >= 8.6.0, < 8.6.1 |
Check a specific version with /api/v1/cve/match.
References
Query this programmatically:
curl https://evil-db.io/api/v1/cve/CVE-2026-58066