{"id":"CVE-2026-116011","aliases":["EUVD-2026-109269","GHSA-7x84-xhp8-6cqj","GHSA-88wj-6c62-8f7x"],"status":"published","title":"Crow before 1.3.4 Denial of Service via Deeply Nested JSON in crow::json::load()","description":"Crow before 1.3.4 contains an uncontrolled recursion vulnerability in crow::json::load() that allows remote unauthenticated attackers to crash the server by sending deeply nested JSON. Attackers can send a request body with thousands of nested objects to exhaust the worker thread stack, terminating the process and dropping all connections.","severity":{"version":"4.0","score":8.7,"vector":"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","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00683,"percentile":0.53,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-674"],"published":"2026-10-24T11:40:30Z","modified":"2026-11-04T02:47:24Z","exploits":[{"source":"pocgithub","id":"D7EAD/CVE-2026-116011","title":"D7EAD/CVE-2026-116011","date":"2026-10-24","url":"https://github.com/D7EAD/CVE-2026-116011"}],"products":[{"vendor":"crowcpp","product":"crow"}],"references":[{"url":"https://github.com/CrowCpp/Crow/security/advisories/GHSA-7x84-xhp8-6cqj","tags":["vendor-advisory","advisory"]},{"url":"https://github.com/CrowCpp/Crow/commit/6956b7ca93c5df22f5aaccd670e5aa000c0d882b","tags":["patch","fix"]},{"url":"https://github.com/CrowCpp/Crow/releases/tag/v1.3.4","tags":["release-notes","advisory"]},{"url":"https://github.com/CrowCpp/Crow/blob/v1.3.3/include/crow/json.h#L878","tags":["technical-description","article"]},{"url":"https://www.vulncheck.com/advisories/crow-before-1.3.4-denial-of-service-via-deeply-nested-json-in-crow-json-load","tags":["third-party-advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-116011","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-88wj-6c62-8f7x"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/116xxx/CVE-2026-116011.json","tags":["advisory"]},{"url":"https://github.com/CrowCpp/Crow","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-116011","title":"Crow before 1.3.4 Denial of Service via Deeply Nested JSON in crow::json::load()","description":"Crow before 1.3.4 contains an uncontrolled recursion vulnerability in crow::json::load() that allows remote unauthenticated attackers to crash the server by sending deeply nested JSON. Attackers can send a request body with thousands of nested objects to exhaust the worker thread stack, terminating the process and dropping all connections.","status":"published","published":"2026-10-24T11:40:30.179Z","modified":"2026-10-26T17:40:34.096Z","cvss":[{"version":"4.0","score":8.7,"vector":"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","level":"high","assessor":"cna"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-674"],"updated_at":"2026-11-02T14:20:03.827373Z"}],"euvd":[{"id":"EUVD-2026-109269","description":"Crow before 1.3.4 contains an uncontrolled recursion vulnerability in crow::json::load() that allows remote unauthenticated attackers to crash the server by sending deeply nested JSON. Attackers can send a request body with thousands of nested objects to exhaust the worker thread stack, terminating the process and dropping all connections.","status":"published","published":"2026-10-24T11:40:30Z","modified":"2026-10-26T17:40:34Z","cvss":[{"version":"4.0","score":8.7,"vector":"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","level":"high"}],"updated_at":"2026-11-02T16:59:28.784227Z"}],"ghsa":[{"id":"GHSA-88wj-6c62-8f7x","title":"Crow before 1.3.4 contains an uncontrolled recursion vulnerability in crow::json::load() that...","description":"Crow before 1.3.4 contains an uncontrolled recursion vulnerability in crow::json::load() that allows remote unauthenticated attackers to crash the server by sending deeply nested JSON. Attackers can send a request body with thousands of nested objects to exhaust the worker thread stack, terminating the process and dropping all connections.","status":"published","published":"2026-10-24T12:30:23Z","modified":"2026-10-24T12:30:31Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"},{"version":"4.0","score":8.7,"vector":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"}],"cwes":["CWE-674"],"updated_at":"2026-11-02T15:14:21.369076Z"}],"nvd":[{"id":"CVE-2026-116011","description":"Crow before 1.3.4 contains an uncontrolled recursion vulnerability in crow::json::load() that allows remote unauthenticated attackers to crash the server by sending deeply nested JSON. Attackers can send a request body with thousands of nested objects to exhaust the worker thread stack, terminating the process and dropping all connections.","status":"published","published":"2026-10-24T12:16:57.07Z","modified":"2026-10-26T18:39:42.503Z","cvss":[{"version":"4.0","score":8.7,"vector":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-674"],"updated_at":"2026-11-02T14:13:03.126833Z"}],"osv":[{"id":"CVE-2026-116011","title":"Crow before 1.3.4 Denial of Service via Deeply Nested JSON in crow::json::load()","description":"Crow before 1.3.4 contains an uncontrolled recursion vulnerability in crow::json::load() that allows remote unauthenticated attackers to crash the server by sending deeply nested JSON. Attackers can send a request body with thousands of nested objects to exhaust the worker thread stack, terminating the process and dropping all connections.","status":"published","published":"2026-10-24T11:40:30.179Z","modified":"2026-11-08T07:05:57.534376723Z","cvss":[{"version":"4.0","score":8.7,"vector":"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","level":"high"}],"cwes":["CWE-674"],"updated_at":"2026-11-08T02:57:19.626258Z"}]}}