{"id":"CVE-2026-55768","summary":"GoAccess WebSocket Server: Signed 32 bit truncation of the 64 bit frame length causes a remote pre-authentication denial of service","details":"GoAccess is a real-time web log analyzer and interactive viewer that runs in a terminal in *nix systems or through the browser. Prior to version 1.11, the built-in WebSocket server narrows a 64-bit extended frame length into the signed 32-bit WSFrame.payloadlen field before enforcing the maximum frame size, allowing an unauthenticated remote client to bypass the guard and force an approximately 18-exabyte allocation request that terminates the process. This issue is fixed in version 1.11.","aliases":["GHSA-5gm5-pvh2-wg46"],"modified":"2026-09-10T08:13:48.207826Z","published":"2026-07-30T20:34:32.833Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-681","CWE-789"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55768.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55768.json"},{"type":"ADVISORY","url":"https://github.com/allinurl/goaccess/security/advisories/GHSA-5gm5-pvh2-wg46"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55768"},{"type":"FIX","url":"https://github.com/allinurl/goaccess/commit/ea74b87254d0adc675c087ff49bddd2d60dc01d5"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/allinurl/goaccess","events":[{"introduced":"0"},{"fixed":"ea74b87254d0adc675c087ff49bddd2d60dc01d5"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"1.11"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"versions":["v1.10.2","v1.10.1","v1.10","v1.9.4","v1.9.2","v1.9.1","v1.9","v1.8.1","v1.8","list","v1.7.2","v1.7.1","v1.7","v1.6.5","v1.6.4","v1.6.3","v1.6.2","v1.6.1","v1.6","v1.5.7","v1.5.6","v1.5.5","v1.5.4","v1.5.3","v1.5.2","v1.5.1","v1.5","v1.4.6","v1.4.5","v1.4.4","v1.4.3","v1.4.2","v1.4.1","v1.4","v0.8","v0.6"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-55768.json","vanir_signatures_modified":"2026-09-10T08:13:48Z","vanir_signatures":[{"deprecated":false,"digest":{"function_hash":"7186399750841121500367791321623152419","length":328},"id":"CVE-2026-55768-3f101233","signature_type":"Function","signature_version":"v1","source":"https://github.com/allinurl/goaccess/commit/ea74b87254d0adc675c087ff49bddd2d60dc01d5","target":{"file":"src/websocket.c","function":"ws_realloc_frm_payload"}},{"signature_type":"Line","signature_version":"v1","source":"https://github.com/allinurl/goaccess/commit/ea74b87254d0adc675c087ff49bddd2d60dc01d5","target":{"file":"src/websocket.h"},"deprecated":false,"digest":{"line_hashes":["72968566362850178300269376346680489484","289968415212257825840849053371240590075","213943987341781513548961245105007183047","239418607921541109711035770235692747219"],"threshold":0.9},"id":"CVE-2026-55768-6e07c8c0"},{"source":"https://github.com/allinurl/goaccess/commit/ea74b87254d0adc675c087ff49bddd2d60dc01d5","target":{"file":"src/websocket.c","function":"ws_get_frm_header"},"deprecated":false,"digest":{"function_hash":"77846482677984869868676388125201215232","length":1362},"id":"CVE-2026-55768-8a6753e5","signature_type":"Function","signature_version":"v1"},{"digest":{"line_hashes":["291697635191400429069637017194731479423","246433851209961756664872865185199574059","280628685390616385707598445997462597206","74569838204938262304612002467145103123","42673025952239434808026837863032877009","29048035309593467849159723649617147307","144667762103213679866831026184068838009","268910300533212774598564931024783089754"],"threshold":0.9},"id":"CVE-2026-55768-921c010a","signature_type":"Line","signature_version":"v1","source":"https://github.com/allinurl/goaccess/commit/ea74b87254d0adc675c087ff49bddd2d60dc01d5","target":{"file":"src/websocket.c"},"deprecated":false}]}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"}]}