Keycloak vulnerable to cross-site scripting (xss) via case-insensitive uri validation bypass
High-risk advisory
CVE-2026-9086
Summary
Keycloak vulnerable to cross-site scripting (xss) via case-insensitive uri validation bypass
Why it matters
GitHub has published a reviewed security advisory for org.keycloak:keycloak-services. Prioritize it with other application dependency updates, especially because EPSS places it in the 56% percentile.
Operator check
Check whether org.keycloak:keycloak-services is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available. EPSS probability: 0.8%; percentile: 56%.
Sources
PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.