{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-101085","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-09-27T20:29:07.432Z","datePublished":"2026-09-27T20:49:57.376Z","dateUpdated":"2026-09-27T20:49:57.376Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-09-27T20:49:57.376Z"},"datePublic":"2026-09-02T00:00:00.000Z","title":"Nezha before 2.3.8 Denial of Service via Alert Rule","descriptions":[{"lang":"en","value":"Nezha before 2.3.8 fails to validate alert rule type and duration bounds, allowing authenticated non-administrator users to create malformed rules that trigger unrecovered panics in the alert evaluator goroutine. Attackers can submit a crafted alert rule via the POST /api/v1/alert-rule endpoint to crash the dashboard process, which persists the rule and causes repeated crashes on restart, disabling all monitoring and control plane functionality."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Numeric Truncation Error","cweId":"CWE-197","type":"CWE"}]}],"affected":[{"vendor":"nezhahq","product":"nezha","defaultStatus":"unaffected","packageURL":"pkg:golang/github.com/nezhahq/nezha","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"2.3.8"},{"version":"2.3.8","status":"unaffected","versionType":"semver"}]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":7.1,"baseSeverity":"HIGH"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM"}}],"references":[{"url":"https://github.com/nezhahq/nezha/security/advisories/GHSA-2qc6-x993-hjq9","tags":["vendor-advisory"],"name":"GitHub Security Advisory (GHSA-2qc6-x993-hjq9)"},{"name":"VulnCheck Advisory: Nezha before 2.3.8 Denial of Service via Alert Rule","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/nezha-before-2.3.8-denial-of-service-via-alert-rule"}],"credits":[{"lang":"en","value":"sondt99","type":"reporter"}],"x_generator":{"engine":"vulncheck-endgame"}}}}