POC_CVE-2026-46716

CVE-2026-46716 — Nezha Monitoring の Cron API 認可バイパスによるクロステナント RCE CVE-2026-46716 を再現・検出するためのラボ環境です。これは Nezha Monitoring の重大な脆弱性で、POST /api/v1/cron エンドポイントに管理者権限チェックがなく、RoleMember ユーザーがクロステナントのリモートコード実行（RCE）を達成できるというものです。 脆弱性の概要 項目| 詳細 ---|--- CVE ID| CVE-2026-46716 GHSA| GHSA-99gv-2m7h-3hh9 CVSS|...

EUVD-2026-64139

Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M tool. Nezha versions 1.14.13 through 1.14.14 and 2.0.0 through 2.0.9 do not bind stream identifiers created by CreateStream in service/rpc/iostream.go to their creating user, and GET /ws/terminal/:id and GET...

PT-2026-79458

Name of the Vulnerable Software and Affected Versions Nezha Monitoring versions 1.14.13 through 1.14.14 Nezha Monitoring versions 2.0.0 through 2.0.9 Description Nezha Monitoring fails to bind stream identifiers created by the CreateStream function in service/rpc/io stream.go to the user who...

CVE-2026-62283: Authorization Bypass Through User-Controlled Key

Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M tool. Nezha versions 1.14.13 through 1.14.14 and 2.0.0 through 2.0.9 do not bind stream identifiers created by CreateStream in service/rpc/iostream.go to their creating user, and GET /ws/terminal/:id and GET...

GO-2026-5687 Nezha Monitoring: RoleMember-reachable SSRF with full response-body reflection via POST /api/v1/notification in github.com/nezhahq/nezha

Nezha Monitoring: RoleMember-reachable SSRF with full response-body reflection via POST /api/v1/notification in github.com/nezhahq/nezha...

GO-2026-5282 Nezha Monitoring: RoleMember can run shell on every server (cross-tenant RCE) via POST /api/v1/cron in github.com/nezhahq/nezha

Nezha Monitoring: RoleMember can run shell on every server cross-tenant RCE via POST /api/v1/cron in github.com/nezhahq/nezha...

CVE-2026-47120 Nezha Monitoring: RoleMember can fire other users' cron tasks via AlertRule.FailTriggerTasks (no ownership check)

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, a RoleMember can fire other users' cron tasks via AlertRule.FailTriggerTasks no ownership check. This issue has been patched in version 2.0.8...

CVE-2026-47120

CVE-2026-47120 affects Nezha Monitoring: from v1.4.0 to before v2.0.8, a RoleMember can trigger other users’ cron tasks via AlertRule.FailTriggerTasks without ownership checks, enabling admin cron commands to run on all servers. The issue is resolved in v2.0.8. Exploitation details in connected s...

CVE-2026-46717 Nezha Monitoring: RoleMember-reachable SSRF with full response-body reflection via POST /api/v1/notification

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...

CVE-2026-46716 Nezha Monitoring: RoleMember can run shell on every server (cross-tenant RCE) via POST /api/v1/cron

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, a RoleMember user can create a scheduled cron task with Cover=CronCoverAll, Servers= and an arbitrary Command. At every tick of the scheduler, the dashboard...

CVE-2026-46716 Nezha Monitoring: RoleMember can run shell on every server (cross-tenant RCE) via POST /api/v1/cron

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, a RoleMember user can create a scheduled cron task with Cover=CronCoverAll, Servers= and an arbitrary Command. At every tick of the scheduler, the dashboard...

CVE-2026-46717: Incorrect Authorization

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...

CVE-2026-46716: Improper Neutralization of Special Elements used in an OS Command

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, a RoleMember user can create a scheduled cron task with Cover=CronCoverAll, Servers= and an arbitrary Command. At every tick of the scheduler, the dashboard...

CVE-2026-47120: Missing Authorization

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, a RoleMember can fire other users' cron tasks via AlertRule.FailTriggerTasks no ownership check. This issue has been patched in version 2.0.8...

_revokeRole doesn't remove account from roleMember set

Lines of code Vulnerability details Impact The function doesn't remove the address from roleMembersrole set, which will mess up with the roleCount Proof of Concept Tools Used Recommended Mitigation Steps rolesrole.membersaccount = false; roleMembersrole.removeaccount; --- The text was updated...