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.
Exploitability
AV:NAC:HPR:NUI:RScope
S:UImpact
C:NI:HA:N5.3/CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:NOther