CVE-2026-53523

MediumCVSS 6.8/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 6.8/10CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

Weakness enumeration

CWE-601

Affected software

No affected versions have been published.

Timeline

Published: Jun 12, 2026
Last modified: Jun 17, 2026
NVD status: Deferred

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