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.
References (2)
Core 2
Scores
CVSS v3
9.8
EPSS
0.0021
EPSS Percentile
11.3%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
total
Details
CWE
CWE-287
Status
published
Products (9)
Rocket.Chat/Rocket.Chat
< 7.10.14
Rocket.Chat/Rocket.Chat
< 8.0.8
Rocket.Chat/Rocket.Chat
< 8.1.7
Rocket.Chat/Rocket.Chat
< 8.2.7
Rocket.Chat/Rocket.Chat
< 8.3.7
Rocket.Chat/Rocket.Chat
< 8.4.5
Rocket.Chat/Rocket.Chat
< 8.5.2
Rocket.Chat/Rocket.Chat
< 8.6.1
Rocket.Chat/Rocket.Chat
< 8.7.0
Published
Jul 30, 2026
Tracked Since
Jul 30, 2026