{"id":"GO-2026-6170","summary":"WITHDRAWN: Malformed backend frame length causes panic in github.com/lib/pq","details":"(This report has been withdrawn with reason: \"Report mistakenly added without having CVE / GHSA associated\"). github.com/lib/pq trusts the unsigned 32-bit length in every PostgreSQL backend frame and subtracts four without first checking that the wire length is at least four. A backend frame whose length is zero through three produces a negative payload length. recvMessage then slices the connection scratch buffer with that negative bound, causing an unrecovered runtime panic that terminates the calling goroutine and process.","aliases":["CVE-2026-56871"],"modified":"2026-08-19T17:32:58.090699946Z","published":"2026-08-18T16:38:10Z","withdrawn":"2026-08-18T20:22:49Z","database_specific":{"review_status":"REVIEWED","url":"https://pkg.go.dev/vuln/GO-2026-6170"},"references":[{"type":"REPORT","url":"https://github.com/golang/vulndb/issues/6170"}],"affected":[{"package":{"name":"github.com/lib/pq","ecosystem":"Go","purl":"pkg:golang/github.com/lib/pq"},"ranges":[{"type":"SEMVER","events":[{"introduced":"1.0.0"}]}],"ecosystem_specific":{"imports":[{"path":"github.com/lib/pq","symbols":["Connector.Connect","DialOpen","Driver.Open","NewDialListener","NewListener","NewListenerConn","Open","conn.Begin","conn.BeginTx","conn.Commit","conn.Exec","conn.ExecContext","conn.Ping","conn.Prepare","conn.PrepareContext","conn.Query","conn.QueryContext","conn.Rollback","conn.recvMessage","rows.Close","rows.Next","stmt.Close","stmt.Exec","stmt.ExecContext","stmt.Query","stmt.QueryContext"]}]},"database_specific":{"source":"https://vuln.go.dev/ID/GO-2026-6170.json"}}],"schema_version":"1.9.0"}