Keycloak-services: keycloak-services: par single-use bypass via flow restart
Exact source revision recorded 29 Oct 2026 19:28:49 UTC. It does not establish the source's current position. Latest evidence.
cve-program · CVE-2026-117859
PublishedA flaw was found in the Pushed Authorization Request PAR implementation of the keycloak-services component. The issue occurs when an authentication flow is restarted, which incorrectly clears the internal markers used to track PAR consumption while leaving the request active. This allows an attacker to reuse the same authorization request to obtain multiple access tokens, bypassing security requirements for single-use requests.
- Source published
- 29 Oct 2026 06:22:11 UTC
- Source modified
- 29 Oct 2026 17:20:26 UTC
- Observed here
- 29 Oct 2026 19:28:49 UTC
- Source terms
- CVE Program Terms of Use
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CVSS 3.1 · 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N