What’s Vulnerable › Vulnerabilities

CVE-2026-48119: Nezha Monitoring: Authenticated agents can forge service-monitor results for other users' services

• Severity: high (CVSS 7.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-12 · updated 2026-10-25
• Weakness: CWE-862

Description

Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M tool. From version 0.20.0 to before version 2.0.12, authenticated agents can forge service-monitor results for other users' services. This issue has been patched in version 2.0.12.

Affected products

• nezhahq nezha: from 0.20.0, < 2.0.12

References

• https://github.com/nezhahq/nezha/security/advisories/GHSA-4g6j-g789-rghm
• https://github.com/nezhahq/nezha/security/advisories/GHSA-4g6j-g789-rghm

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