Token Exchange Vulnerability in Keycloak by Red Hat
CVE-2026-96460

5.4MEDIUM

Key Information:

Vendor

Red Hat
Status
Red Hat Build Of Keycloak
Red Hat Single Sign-on 7
Vendor
CVE Published:
6 November 2026

What is CVE-2026-96460?

A vulnerability exists in Keycloak's token exchange mechanism that allows authenticated users to extend access for service accounts indefinitely. When utilizing the Standard Token Exchange V2, newly issued tokens do not adhere to the original token's expiration settings. This behavior can lead to security risks, particularly if the original client has been disabled, thereby compromising the integrity of access control mechanisms.

References

https://access.redhat.com/security/cve/CVE-2026-96460
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2539301
issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Red Hat would like to thank Stian Thorgersen (IBM) for reporting this issue.
.