CVE-2026-92358 — MEDIUM (6.4)

Vulnerability 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 Score

6.4

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

NONE

Related Weaknesses (CWE)

CWE-613

References

https://access.redhat.com/security/cve/CVE-2026-92358

FAQ

What is CVE-2026-92358?

CVE-2026-92358 is a vulnerability with a CVSS score of 6.4 (MEDIUM). 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 ...

How severe is CVE-2026-92358?

CVE-2026-92358 has been rated MEDIUM with a CVSS base score of 6.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-92358?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.