{"id":"GO-2026-6517","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 in github.com/kcp-dev/kcp","details":"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 in github.com/kcp-dev/kcp","aliases":["CVE-2026-61682","GHSA-c8w2-fgvx-vhv4"],"modified":"2026-09-28T17:00:16.350676379Z","published":"2026-09-28T16:43:40Z","database_specific":{"review_status":"UNREVIEWED","url":"https://pkg.go.dev/vuln/GO-2026-6517"},"references":[{"type":"ADVISORY","url":"https://github.com/kcp-dev/kcp/security/advisories/GHSA-c8w2-fgvx-vhv4"},{"type":"FIX","url":"https://github.com/kcp-dev/kcp/commit/7437cdcfec8f927d1a9bf1b2dd1e075d038e27ca"},{"type":"WEB","url":"https://github.com/kcp-dev/kcp/releases/tag/v0.31.4"},{"type":"WEB","url":"https://github.com/kcp-dev/kcp/releases/tag/v0.32.2"}],"affected":[{"package":{"name":"github.com/kcp-dev/kcp","ecosystem":"Go","purl":"pkg:golang/github.com/kcp-dev/kcp"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.31.4"},{"introduced":"0.32.0"},{"fixed":"0.32.2"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://vuln.go.dev/ID/GO-2026-6517.json"}}],"schema_version":"1.9.0"}