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CVE PROGRAM SOURCE RECORD6.4 Medium

CVE-2026-53521

Nezha Monitoring: Stored future DDNS profile ID allows unauthorized use of another user's DDNS profile context

Description

Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M tool. From version 2.0.14 to before version 2.1.0, PATCH /server/{id} accepts and persists nonexistent ddns_profiles IDs for a member-owned server. If another user later creates a DDNS profile with one of those IDs, the DDNS worker resolves the stored ID and dispatches an update using the other user's DDNS profile configuration in the context of the attacker's server. This issue has been patched in version 2.1.0.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

nezhahq nezha

  • >= 2.0.14, < 2.1.0affected

References