CVE-2026-53521
Nezha Monitoring: Stored future DDNS profile ID allows unauthorized use of another user's DDNS profile context in github.com/nezhahq/nezha
Description
Nezha Monitoring: Stored future DDNS profile ID allows unauthorized use of another user's DDNS profile context in github.com/nezhahq/nezha. NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions. (If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.) The additional affected modules and versions are: github.com/nezhahq/nezha from v2.0.14 before v2.1.0.
How to fix CVE-2026-53521
To remediate CVE-2026-53521, upgrade the affected package to a fixed version below.
- —upgrade to 2.1.0 or later
- —no fix listed
Is CVE-2026-53521 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- >= 2.0.14, < 2.1.0
- from 0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:L |