Vulnerability · Published Jun 12, 2026 · Assigned by GitHub_M
CVE-2026-49396Nezha Monitoring: Cross-site GET request can trigger stored cron commands on a victim's agents
High 7.1
In plain English
A high-severity cross-site request forgery in nezha from nezhahq. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 4% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.1High
Exploit odds (30 days)0.1%top 96.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M tool. From version 1.0.0 to before version 2.0.14, cross-site GET request can trigger stored cron commands on a victim's agents. This issue has been patched in version 2.0.14.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/nezhahq/nezha | 2.0.14 | GHSA-8qhj-4f8c-j8qg |
| Go | github.com/nezhahq/nezha | no fix listed | GO-2026-5261 |
Affected products (as reported)
Weakness: CWE-352 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L
References
- https://github.com/nezhahq/nezha/security/advisories/GHSA-8qhj-4f8c-j8qg x_refsource_CONFIRM