{"id":"CVE-2026-105112","published":"2026-10-03T14:16:37.677","lastModified":"2026-10-05T16:17:07.417","description":"Nezha from 1.8.0 before 2.3.13 contains a lock-order inversion in UpdateGroup and DeleteGroup that allows authenticated non-admin users to deadlock the alerting subsystem. Attackers can concurrently call the notification-group and batch-delete endpoints with oversized id lists to widen the race and close an ABBA cycle, permanently killing alert delivery until restart.","cvssScore":5.3,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","cwes":["CWE-362"],"vendors":[],"products":[],"references":[{"url":"https://github.com/nezhahq/nezha/security/advisories/GHSA-53vr-p24v-qvwf","tags":[]},{"url":"https://www.vulncheck.com/advisories/nezha-1.8.0-before-2.3.13-deadlock-dos-via-notification-group-endpoints","tags":[]},{"url":"https://github.com/nezhahq/nezha/security/advisories/GHSA-53vr-p24v-qvwf","tags":[]}],"exploitRefs":[{"url":"https://github.com/nezhahq/nezha/security/advisories/GHSA-53vr-p24v-qvwf","tags":[]},{"url":"https://github.com/nezhahq/nezha/security/advisories/GHSA-53vr-p24v-qvwf","tags":[]}],"hasPoc":true,"ai":null}