{"id":"CVE-2026-120046","aliases":["EUVD-2026-114328","GHSA-9764-g6f6-xvmw"],"status":"published","title":"Nezha 2.0.0 before 2.4.0 Startup NULL Pointer Dereference via Orphaned Service History","description":"Nezha 2.0.0 before 2.4.0 contains a NULL pointer dereference vulnerability in ServiceSentinel.loadTodayStats that allows authenticated users to crash the dashboard by deleting a service. Attackers can delete their own service via POST /api/v1/batch-delete/service, leaving orphaned service_histories rows that crash the non-TSDB dashboard on its next startup until removed manually.","severity":{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.003,"percentile":0.22997,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-476"],"published":"2026-10-30T18:52:58Z","modified":"2026-11-05T02:29:31Z","products":[{"vendor":"nezhahq","product":"nezha"}],"references":[{"url":"https://github.com/nezhahq/nezha/commit/efd3e07b901d6acf7ef2ab3b26458cc07e7605dc","tags":["patch","fix"]},{"url":"https://github.com/nezhahq/nezha/releases/tag/v2.4.0","tags":["release-notes","advisory"]},{"url":"https://github.com/nezhahq/nezha/blob/9881c47f0cc92256ba203919da5a25fab79a6bad/service/singleton/servicesentinel.go#L434","tags":["technical-description","article"]},{"url":"https://github.com/nezhahq/nezha/blob/9881c47f0cc92256ba203919da5a25fab79a6bad/cmd/dashboard/controller/service.go#L639","tags":["technical-description","article"]},{"url":"https://github.com/nezhahq/nezha","tags":["product","package"]},{"url":"https://www.vulncheck.com/advisories/nezha-2.0.0-before-2.4.0-startup-null-pointer-dereference-via-orphaned-service-history","tags":["third-party-advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-120046","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-9764-g6f6-xvmw"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/120xxx/CVE-2026-120046.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-120046","title":"Nezha 2.0.0 before 2.4.0 Startup NULL Pointer Dereference via Orphaned Service History","description":"Nezha 2.0.0 before 2.4.0 contains a NULL pointer dereference vulnerability in ServiceSentinel.loadTodayStats that allows authenticated users to crash the dashboard by deleting a service. Attackers can delete their own service via POST /api/v1/batch-delete/service, leaving orphaned service_histories rows that crash the non-TSDB dashboard on its next startup until removed manually.","status":"published","published":"2026-10-30T18:52:58.489Z","modified":"2026-11-05T02:29:31.806Z","cvss":[{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-476"],"updated_at":"2026-11-05T06:56:15.67765Z"}],"euvd":[{"id":"EUVD-2026-114328","description":"Nezha 2.0.0 before 2.4.0 contains a NULL pointer dereference vulnerability in ServiceSentinel.loadTodayStats that allows authenticated users to crash the dashboard by deleting a service. Attackers can delete their own service via POST /api/v1/batch-delete/service, leaving orphaned service_histories rows that crash the non-TSDB dashboard on its next startup until removed manually.","status":"published","published":"2026-10-30T18:52:58Z","modified":"2026-11-05T02:29:31Z","cvss":[{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-05T06:54:34.509968Z"}],"ghsa":[{"id":"GHSA-9764-g6f6-xvmw","title":"Nezha 2.0.0 before 2.4.0 contains a NULL pointer dereference vulnerability in ServiceSentinel...","description":"Nezha 2.0.0 before 2.4.0 contains a NULL pointer dereference vulnerability in ServiceSentinel.loadTodayStats that allows authenticated users to crash the dashboard by deleting a service. Attackers can delete their own service via POST /api/v1/batch-delete/service, leaving orphaned service_histories rows that crash the non-TSDB dashboard on its next startup until removed manually.","status":"published","published":"2026-10-30T21:32:18Z","modified":"2026-10-30T21:32:19Z","cvss":[{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/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":"medium"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T15:14:52.597654Z"}],"nvd":[{"id":"CVE-2026-120046","description":"Nezha 2.0.0 before 2.4.0 contains a NULL pointer dereference vulnerability in ServiceSentinel.loadTodayStats that allows authenticated users to crash the dashboard by deleting a service. Attackers can delete their own service via POST /api/v1/batch-delete/service, leaving orphaned service_histories rows that crash the non-TSDB dashboard on its next startup until removed manually.","status":"published","published":"2026-10-30T19:18:22.93Z","modified":"2026-11-05T03:17:20.77Z","cvss":[{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/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":"medium","assessor":"secondary"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-476"],"updated_at":"2026-11-05T06:56:49.198795Z"}],"osv":[{"id":"CVE-2026-120046","title":"Nezha 2.0.0 before 2.4.0 Startup NULL Pointer Dereference via Orphaned Service History","description":"Nezha 2.0.0 before 2.4.0 contains a NULL pointer dereference vulnerability in ServiceSentinel.loadTodayStats that allows authenticated users to crash the dashboard by deleting a service. Attackers can delete their own service via POST /api/v1/batch-delete/service, leaving orphaned service_histories rows that crash the non-TSDB dashboard on its next startup until removed manually.","status":"published","published":"2026-10-30T18:52:58.489Z","modified":"2026-11-05T21:16:05.344397841Z","cvss":[{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-476"],"updated_at":"2026-11-05T22:00:58.054534Z"}]}}