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CVE-2026-53523

Nezha Monitoring: OAuth2 Redirect URL — Host Header Injection PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
nezhahq / nezhaaffected >= 1.0.0, < 2.2.0

CWE

CWE-601

References

ADP enrichment

CISA-ADP

No English description supplied.