---
title: "CVE-2026-46716: Nezha Monitoring: RoleMember can run shell on every server (cross-tenant RCE) via POST /api/v1/cron"
url: https://erroneo.us/security/cve/CVE-2026-46716/
description: "CVE-2026-46716 (github.com/nezhahq/nezha (Go)): Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M tool. From version…"
type: vulnerability-record
section: "Security Digest"
date_published: 2026-06-12
date_modified: 2026-06-26
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2026-46716"
kev: false
cvss: 9.9
epss: 0.00491
license: All rights reserved. Quote with attribution and a link.
---

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

**Signal:** Critical, preconditions apply. Severe if exploited, but exploitation needs conditions that may not apply to you. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Not in CISA KEV , but CISA’s SSVC assessment records a public proof-of-concept, so attack code exists.
- EPSS 0.5% , percentile 41: FIRST’s model estimates a 0.5% chance of exploitation activity in the next 30 days, higher than 41% of all scored CVEs (low). EPSS is a probability, not a verdict.
- Needs an account (low (any account)). Exposure depends on who can log in.
- Only applies if your dependency tree includes github.com/nezhahq/nezha (Go) >= 1.4.0, < 1.14.15-0.20260517022419-d7526351cf97, fixed in 1.14.15-0.20260517022419-d7526351cf97 . Check your lockfile, including transitive dependencies.

## What it is

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 pushes that command to every server in the global ServerShared map — including servers that belong to other tenants (admin's servers, other members' servers). Each agent runs the command and returns the output, which is then sent to the attacker's own NotificationGroup → attacker-controlled webhook. This issue has been patched in version 2.0.8.

## Affected packages

- Go `github.com/nezhahq/nezha` >= 1.4.0, < 1.14.15-0.20260517022419-d7526351cf97 → fixed: 1.14.15-0.20260517022419-d7526351cf97

## Affected products (CVE record)

- nezhahq nezha: >= 1.4.0, < 2.0.8

## Severity

- GitHub_M CVSS 3.1: 9.9 `CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H`
- GitHub CVSS 3.1: 9.9 `CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation poc , automatable no , technical impact total .
- FIRST EPSS (model of 2026-10-21): 0.49% probability of exploitation activity in the next 30 days; percentile 41.

## Sources

- [GitHub Advisory GHSA-99gv-2m7h-3hh9](https://github.com/advisories/GHSA-99gv-2m7h-3hh9)
- [CVE.org record CVE-2026-46716](https://www.cve.org/CVERecord?id=CVE-2026-46716)
- [NVD entry CVE-2026-46716](https://nvd.nist.gov/vuln/detail/CVE-2026-46716)
- [github.com](https://github.com/nezhahq/nezha/security/advisories/GHSA-99gv-2m7h-3hh9)

---
Source page: https://erroneo.us/security/cve/CVE-2026-46716/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt