{"api_version":"1","generated_at":"2026-06-13T21:34:27+00:00","cve":"CVE-2026-53523","urls":{"html":"https://cve.report/CVE-2026-53523","api":"https://cve.report/api/cve/CVE-2026-53523.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-53523","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-53523"},"summary":{"title":"Nezha Monitoring: OAuth2 Redirect URL — Host Header Injection","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. 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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.","Type":"Description","Title":"Nezha Monitoring: OAuth2 Redirect URL — Host Header Injection"}]}}}