CVE-2026-53521
Nezha Monitoring: Stored future DDNS profile ID allows unauthorized use of another user's DDNS profile context
CVSS Score
6.4
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-863 |
| Vendor | nezhahq |
| Product | nezha |
| Published | Jun 12, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:L Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
None
Integrity
Low
Availability
Low
Affected Versions
nezhahq / nezha
>= 2.0.14, < 2.1.0