kcp front-proxy does not strip inbound X-Remote-* identity headers, allowing any authenticated client to inject group...
High-risk advisory
CVE-2026-61682
Summary
kcp front-proxy does not strip inbound X-Remote-* identity headers, allowing any authenticated client to inject groups/warrants and impersonate system:masters in any workspace
Why it matters
GitHub has published a reviewed security advisory for github.com/kcp-dev/kcp. Prioritize it with other application dependency updates.
Operator check
Check whether github.com/kcp-dev/kcp is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available.
Sources
PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.