CVE-2026-53523
Nezha Monitoring: OAuth2 Redirect URL — Host Header Injection in github.com/nezhahq/nezha
6.8
MEDIUM
CVSS 3.1
EPSS 0.23%
Description
Nezha Monitoring: OAuth2 Redirect URL — Host Header Injection 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 before v2.2.0.
How to fix CVE-2026-53523
To remediate CVE-2026-53523, upgrade the affected package to a fixed version below.
- —upgrade to 2.2.0 or later
- —no fix listed
Is CVE-2026-53523 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- >= 1.0.0, < 2.2.0
- >= 1.0.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.8 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N |