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CVE-2026-53523

MEDIUM
6.8
CVSS Severity Score
EPSS Score0.1590%
EPSS Percentile28.11th
PublishedJun 12, 2026
Last ModifiedJun 12, 2026

Vulnerability 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.

Affected Platforms (CPE)

No CPE configurations currently published for this record.

References & Advisories

🔗 https://github.com/nezhahq/nezha/security/advisories/GHSA-9rc6-8cjv-rcvx

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