Detections
Analytics
CVE-2026-53523
medium
Description
Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M tool. From version 1.0.0 to before version 2.2.0, the getRedirectURL function in oauth2.go:22-29 constructs the OAuth2 callback URL by concatenating the request's Host header with a fixed path, with zero validation of the Host header. This can result in host header injection. This issue has been patched in version 2.2.0.
References
https://github.com/nezhahq/nezha/security/advisories/GHSA-9rc6-8cjv-rcvx