{"id":"CVE-2026-46717","sourceIdentifier":"security-advisories@github.com","published":"2026-06-12T22:16:50.957","lastModified":"2026-06-17T10:53:51.307","vulnStatus":"Deferred","cveTags":[],"descriptions":[{"lang":"en","value":"Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M tool. From version 1.4.0 to before version 2.0.8, nezha's dashboard supports two user roles: RoleAdmin (Role==0) and RoleMember (Role==1). The notification routes POST /api/v1/notification and PATCH /api/v1/notification/:id are wired through commonHandler rather than adminHandler — so a RoleMember user can call them. These handlers synchronously Send() an HTTP request to a user-controlled URL and reflect the entire response body (no size limit) back to the caller on any non-2xx response. This issue has been patched in version 2.0.8."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"nezhahq","product":"nezha","versions":[{"version":">= 1.4.0, < 2.0.8","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N","baseScore":7.7,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"},"exploitabilityScore":3.1,"impactScore":4.0}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-06-13T03:38:02.540135Z","id":"CVE-2026-46717","options":[{"exploitation":"poc"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-863"},{"lang":"en","value":"CWE-918"}]}],"references":[{"url":"https://github.com/nezhahq/nezha/security/advisories/GHSA-w4g9-mxgg-j532","source":"security-advisories@github.com"},{"url":"https://github.com/nezhahq/nezha/security/advisories/GHSA-w4g9-mxgg-j532","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}]}