CVE-2026-92358
MEDIUM
MEDIUM
Priority: 0.02
BB Relevance:
43/100
Published: 2026-09-16
Modified: 2026-11-06
First seen: 2026-11-03
Status: active
Attack Surface
Network
Conf. Impact
Integ. Impact
CVSS Vector Breakdown
AV:
Network
AC:
High
PR:
Low
UI:
Required
S:
Unchanged
C:
High
I:
High
A:
None
Description
A flaw was found in the first broker login flow of Keycloak. When a user confirms an account-linking request from a different browser, a temporary proof is created to validate the link. However, this proof is not properly cleared after the link is established or when the user later manually removes the link. An attacker who controls the external identity can exploit this leftover proof to silently re-establish the link and gain unauthorized access to the victims account without any further confirmation.
Weakness Classification (1)
References & Advisories (2)
vendor-advisory
x_refsource_REDHAT
vdb-entry
x_refsource_REDHAT