{"id":"CVE-2026-111383","title":"Nezha from 2.0.13 before 2.3.15 contains a resource exhaustion vulnerability that allows authenticated users to open unbounded concurrent connections to the /api/v1/ws/transfer WebSocket endpoint","summary":"Nezha from 2.0.13 before 2.3.15 contains a resource exhaustion vulnerability that allows authenticated users to open unbounded concurrent connections to the /api/v1/ws/transfer WebSocket endpoint. Attackers can hold thousands of subscrip…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-770"],"vendor":"nezhahq","product":"nezha","affected":["nezha >= 2.0.13 < 2.3.15"],"published":"2026-10-16","updated":"2026-10-16","sourceUpdated":"2026-10-16T17:17:33.160","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-111383","references":[{"url":"https://github.com/nezhahq/nezha/commit/36b742a7e9a81ed782363dd19efd77b7030fbd0f","label":"disclosure@vulncheck.com"},{"url":"https://github.com/nezhahq/nezha/security/advisories/GHSA-ch6h-w872-77mx","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/nezha-2.0.13-before-2.3.15-denial-of-service-via-api-v1-ws-transfer-websocket","label":"disclosure@vulncheck.com"},{"url":"https://github.com/nezhahq/nezha/security/advisories/GHSA-ch6h-w872-77mx","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"epss":0.00358,"epssPercentile":0.29385,"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-16T16:23:58.349675Z"},"ingestedAt":"2026-10-16T01:55:57.991Z","slug":"CVE-2026-111383","body":"## Overview\n\nNezha from 2.0.13 before 2.3.15 contains a resource exhaustion vulnerability that allows authenticated users to open unbounded concurrent connections to the /api/v1/ws/transfer WebSocket endpoint. Attackers can hold thousands of subscriptions created by ServerTransferClass.Subscribe without limits, exhausting file descriptors, memory, and goroutines and blocking agent gRPC reconnections.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":35.8,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":223155,"id":"CVE-2026-111383","ts":1792172530002,"field":"exploit_available","old":"false","new":"true"}]}