CVE-2026-92358
Received Received - Intake

Keycloak Account Linking Session Persistence Flaw

Vulnerability report for CVE-2026-92358, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-09-16

Last updated on: 2026-09-16

Assigner: redhat-SADP

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.

CVSS Scores

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Meta Information

Published
2026-09-16
Last Modified
2026-09-16
Generated
2026-09-16
EPSS Evaluated
N/A
NVD
EUVD

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
keycloak keycloak *

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-613 According to WASC, "Insufficient Session Expiration is when a web site permits an attacker to reuse old session credentials or session IDs for authorization."

Attack-Flow Graph

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