HIGHMaven →
Keycloak: Redirect URI validation bypass via ..;/ path traversal in OIDC auth endpoint
Keycloak: Redirect URI validation bypass via ..;/ path traversal in OIDC auth endpoint
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-2026-3872
- https://github.com/keycloak/keycloak/issues/47718
- https://github.com/keycloak/keycloak/commit/35a71b00bc856ac402711130f60190d3a24795e7
- 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-2026-3872
- https://bugzilla.redhat.com/show_bug.cgi?id=2445988
- https://github.com/keycloak/keycloak
Structured record: https://osv.dev/vulnerability/GHSA-cjm2-j6cm-6p6m
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