{"action":"Upgrade google.golang.org/grpc to 1.83.1 or later.","affected":[{"fixed":"1.83.1","introduced":"0"}],"component":"google.golang.org/grpc","cve_ids":["CVE-2026-84303"],"ecosystem":"Go","epss":0.00311,"exploited":false,"fixed_versions":["1.83.1"],"ghsa_id":"GHSA-qc2q-p7wx-3px3","id":"tcs_01M5KGTPS43V233N56WKPFBQW3","modified_at":"2026-09-15T19:00:17.130575881Z","published_at":"2026-09-15T18:39:25Z","references":["https://osv.dev/vulnerability/GO-2026-6441","https://github.com/grpc/grpc-go/security/advisories/GHSA-qc2q-p7wx-3px3","https://github.com/grpc/grpc-go/pull/9332"],"severity":{"label":"medium","score":6.3},"sources":[{"source":"osv","source_id":"GO-2026-6441","url":"https://osv.dev/vulnerability/GO-2026-6441"},{"source":"nvd","source_id":"CVE-2026-84303","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-84303"}],"summary":"Bypass of xDS RBAC HTTP filter header matching in google.golang.org/grpc"}