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GHSA-rx66-hj7g-28h7

Keycloak: Replay of action tokens via improper handling of single-use entries

Source: GitHub Advisory Database (reviewed) Moderate CVE-2026-4325

Packages

EcosystemPackageAffectedFixed in
Maven org.keycloak:keycloak-services < 26.5.7 26.5.7

Details

As written in the advisory (Markdown source, shown as plain text).

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

External links from the advisory. They lead to third-party sites.