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Keycloak: Privilege escalation via forged authorization codes due to SingleUseObjectProvider isolation flaw
Keycloak: Privilege escalation via forged authorization codes due to SingleUseObjectProvider isolation flaw
Affected packages
- org.keycloak:keycloak-services— before 26.5.7
Exploit signal
- Known exploited (CISA KEV)
- No
- EPSS score
- —
- EPSS percentile
- —
EPSS is the probability a CVE is exploited in the wild; percentile is its rank among all CVEs.
Sources
- https://nvd.nist.gov/vuln/detail/CVE-2026-4282
- https://github.com/keycloak/keycloak/issues/47719
- https://github.com/keycloak/keycloak/commit/9046f201125a6fd6be9c116b99d348509d99d4a5
- https://access.redhat.com/errata/RHSA-2026:6475
- https://access.redhat.com/errata/RHSA-2026:6476
- https://access.redhat.com/errata/RHSA-2026:6477
- https://access.redhat.com/errata/RHSA-2026:6478
- https://access.redhat.com/security/cve/CVE-2026-4282
- https://bugzilla.redhat.com/show_bug.cgi?id=2448061
- https://github.com/keycloak/keycloak
Structured record: https://osv.dev/vulnerability/GHSA-hj93-h7pg-fh6v
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