Quick answers
- Is CVE-2026-47120 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-47120 being exploited in the wild.
- How severe is CVE-2026-47120?
- High severity, with a CVSS score of 7.1, published 12 June 2026.
- Which products and versions are affected?
- github.com/nezhahq/nezha (Go) >= 1.4.0, < 1.14.15-0.20260517022419-d7526351cf97, SEMVER:introduced=1.4.0,fixed=1.14.15-0.20260517022419-d7526351cf97; NezhaHQ Nezha Monitoring >= 1.4.0, < 2.0.8.
- Is there a fix for CVE-2026-47120?
- Yes. github.com/nezhahq/nezha (Go): upgrade to 1.14.15-0.20260517022419-d7526351cf97 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-47120 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-47120?
- Check whether you run github.com/nezhahq/nezha (Go) or NezhaHQ Nezha Monitoring at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
- github.com/nezhahq/nezha (Go): upgrade to 1.14.15-0.20260517022419-d7526351cf97 or later
go get github.com/nezhahq/nezha@v1.14.15-0.20260517022419-d7526351cf97
Technical details
A missing authorization check (CWE-862) exists in the 'createAlertRule' and 'createService' functions within Nezha Monitoring. Authenticated users with 'RoleMember' privileges can submit 'FailTriggerTasks' or 'RecoverTriggerTasks' containing arbitrary cron task IDs. The application fails to verify if the requesting user owns the specified cron tasks. When the alert or service monitor is triggered, the system executes the linked cron tasks. If these tasks are configured with broad coverage (e.g., 'CronCoverAll'), the commands are broadcast to all connected agents, allowing a non-admin user to invoke administrative actions globally. This issue is patched in version 2.0.8.
Affected products
- NezhaHQ Nezha Monitoring >= 1.4.0, < 2.0.8
Identifiers
- CVE-2026-47120
- GHSA-rxf6-wjh4-jfj6
- GO-2026-5645
Timeline
- 2026-05-17: advisory: Original GitHub security advisory published
- 2026-06-12: disclosed: CVE published to NVD
- 2026-06-12: patched: Fix released in version 2.0.8