{"id":"GO-2026-5102","summary":"Default kuma-cp leaks admin token cross-origin via CORS wildcard + LocalhostIsAdmin in github.com/kumahq/kuma","details":"Default kuma-cp leaks admin token cross-origin via CORS wildcard + LocalhostIsAdmin in github.com/kumahq/kuma.\n\nNOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.\n\n(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)\n\nThe additional affected modules and versions are: github.com/kumahq/kuma/v2 from v2.9.0 before v2.9.15.","aliases":["CVE-2026-18676","CVE-2026-45021","GHSA-3vcp-chfh-f6r2"],"modified":"2026-08-13T04:10:36.471482007Z","published":"2026-07-22T20:36:55Z","related":["CGA-5j83-q37x-x3jw"],"database_specific":{"url":"https://pkg.go.dev/vuln/GO-2026-5102","review_status":"UNREVIEWED"},"references":[{"type":"ADVISORY","url":"https://github.com/kumahq/kuma/security/advisories/GHSA-3vcp-chfh-f6r2"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45021"},{"type":"FIX","url":"https://github.com/kumahq/kuma/commit/8fefa8595d44eb68d922405702ed7a0826322907"},{"type":"FIX","url":"https://github.com/kumahq/kuma/pull/16416"},{"type":"FIX","url":"https://github.com/kumahq/kuma/pull/16423"},{"type":"FIX","url":"https://github.com/kumahq/kuma/pull/16424"},{"type":"FIX","url":"https://github.com/kumahq/kuma/pull/16425"},{"type":"FIX","url":"https://github.com/kumahq/kuma/pull/16426"},{"type":"FIX","url":"https://github.com/kumahq/kuma/pull/16427"}],"affected":[{"package":{"name":"github.com/kumahq/kuma","ecosystem":"Go","purl":"pkg:golang/github.com/kumahq/kuma"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://vuln.go.dev/ID/GO-2026-5102.json"}},{"package":{"name":"github.com/kumahq/kuma/v2","ecosystem":"Go","purl":"pkg:golang/github.com/kumahq/kuma/v2"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.7.25"},{"introduced":"2.9.13"},{"fixed":"2.11.13"},{"introduced":"2.12.4"},{"fixed":"2.12.10"},{"introduced":"2.13.0"},{"fixed":"2.13.5"}]}],"ecosystem_specific":{"custom_ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.9.0"},{"fixed":"2.9.15"},{"introduced":"2.11.0"},{"introduced":"2.12.0"}]}]},"database_specific":{"source":"https://vuln.go.dev/ID/GO-2026-5102.json"}}],"schema_version":"1.7.5"}