{"schema_version":"1.3.1","id":"GO-2026-4789","modified":"2026-04-07T14:58:41Z","published":"2026-04-07T14:58:41Z","aliases":["CVE-2026-26933","GHSA-27qj-9gvp-8rh9"],"summary":"Packetbeat does not properly validate an array index in multiple protocol parser components in github.com/elastic/beats","details":"Packetbeat does not properly validate an array index in multiple protocol parser components in github.com/elastic/beats","affected":[{"package":{"name":"github.com/elastic/beats","ecosystem":"Go"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"}]}],"ecosystem_specific":{}},{"package":{"name":"github.com/elastic/beats/v7","ecosystem":"Go"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"7.0.0-alpha2.0.20260126223743-dec1b31111ec"}]}],"ecosystem_specific":{"imports":[{"path":"github.com/elastic/beats/v7/packetbeat/procs","symbols":["findSocketsOfPid","hexToIPPort","hexToIpv6","parseProcNetProto"]},{"path":"github.com/elastic/beats/v7/packetbeat/protos/pgsql","symbols":["pgsqlPlugin.parseDataRow","pgsqlPlugin.parseExtReq","pgsqlPlugin.parseMessageStart","readCount","readLength"]}]}}],"references":[{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-27qj-9gvp-8rh9"},{"type":"FIX","url":"https://github.com/elastic/beats/commit/941098459db6556b837194f40c076b08d51137cb"},{"type":"FIX","url":"https://github.com/elastic/beats/commit/dec1b31111ec3500b82db21ba67dde5c914ee94d"},{"type":"WEB","url":"https://discuss.elastic.co/t/packetbeat-8-19-11-9-2-5-security-update-esa-2026-11/385533"}],"database_specific":{"url":"https://pkg.go.dev/vuln/GO-2026-4789","review_status":"REVIEWED"}}