GitHub Advisoryadvisory · Maven
GHSA-rx66-hj7g-28h7 Keycloak: Replay of action tokens via improper handling of single-use entries
MEDIUM
Official page ↗
- Aliases
- CVE-2026-4325
- Ecosystem
- Maven
- Packages
- org.keycloak:keycloak-services
- Severity
- Moderate
- CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
- Weaknesses
- CWE-653
- Reviewed
- 2026-04-04
Affected packages
• Maven org.keycloak:keycloak-services: < 26.5.7 → fixed in 26.5.7
Description
A flaw was found in Keycloak. The SingleUseObjectProvider, a global key-value store, lacks proper type and namespace isolation. This vulnerability allows an attacker to delete arbitrary single-use entries, which can enable the replay of consumed action tokens, such as password reset links. This could lead to unauthorized access or account compromise.
Related
Alias · CVE (1)
- CVE-2026-4325 A flaw was found in Keycloak. vulnerability
Weakness · CWE (1)
- CWE-653 Improper Isolation or Compartmentalization weakness
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-4325 advisory
- https://github.com/keycloak/keycloak/issues/47715 web
- https://github.com/keycloak/keycloak/commit/9046f201125a6fd6be9c116b99d348509d99d4a5 web
- https://access.redhat.com/errata/RHSA-2026:6475 web
- https://access.redhat.com/errata/RHSA-2026:6476 web
- https://access.redhat.com/errata/RHSA-2026:6477 web
- https://access.redhat.com/errata/RHSA-2026:6478 web
- https://access.redhat.com/security/cve/CVE-2026-4325 web
- https://bugzilla.redhat.com/show_bug.cgi?id=2448351 web
- https://github.com/keycloak/keycloak package