Description
A flaw was found in Keycloak before 13.0.0 where an external identity provider, after successful authentication, redirects to a Keycloak endpoint that accepts multiple invocations with the use of the same "state" parameter. This flaw allows a malicious user to perform replay attacks.
Scores
CVSS v3
4.9
EPSS
0.0015
EPSS Percentile
35.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
Details
CWE
CWE-294
Status
published
Products (1)
redhat/keycloak
< 13.0.0
Published
Dec 15, 2020
Tracked Since
Feb 18, 2026