MEDIUM 5.3 Maven
Keycloak: Replay of action tokens via improper handling of single-use entries
GHSA-rx66-hj7g-28h7 · CVE-2026-4325
Published · Modified
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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.
References
- ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2026-4325
- WEB 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
- PACKAGE https://github.com/keycloak/keycloak
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