CVE-2026-53523

6.8 MEDIUM

Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M tool

Published: 2026-06-12 · Last updated: 2026-06-12

Severity and scoring

CVSS: 6.8 MEDIUM
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
CWE: CWE-601

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.

Source: NVD

References

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