medium6.8
CVE-2026-9802
Keycloak has Insufficient Session Expiration
Impact
A flaw was found in Keycloak. When revokeRefreshToken=true is enabled and persistent session storage is in use, a server restart can reset internal timing mechanisms. This allows a remote attacker, who has previously captured a user's refresh token, to replay that token even after it has been revoked. Successful exploitation grants the attacker unauthorized access to the victim's account, potentially leading to information disclosure or privilege escalation.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| maven | org.keycloak:keycloak-services | <= 26.4.7 | none recorded |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Redhat | Build Of Keycloak | All versions |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-v5g5-wwmp-jppw
- https://nvd.nist.gov/vuln/detail/CVE-2026-9802
- https://access.redhat.com/security/cve/CVE-2026-9802
- https://bugzilla.redhat.com/show_bug.cgi?id=2482467
- https://access.redhat.com/errata/RHSA-2026:25098
- https://access.redhat.com/errata/RHSA-2026:25097
- https://access.redhat.com/errata/RHSA-2026:30049
- https://access.redhat.com/errata/RHSA-2026:30050
- https://github.com/keycloak/keycloak/issues/49426
- https://github.com/keycloak/keycloak/pull/49542
- https://github.com/keycloak/keycloak/pull/49619
- https://github.com/keycloak/keycloak/pull/49620
- https://github.com/keycloak/keycloak/commit/165df48d3f0f42ede8e6082184892ca7cc703989
- https://github.com/keycloak/keycloak/commit/3451217e3837ce5e8bbcac2773f0ac44830b95f1
- https://github.com/keycloak/keycloak/commit/3fde018b98e2729a594a3ac7fc730fde31da2f07