๐Ÿ” CVE Alert

CVE-2026-101085

MEDIUM 6.5

Nezha before 2.3.8 Denial of Service via Alert Rule

CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th

Nezha before 2.3.8 fails to validate alert rule type and duration bounds, allowing authenticated non-administrator users to create malformed rules that trigger unrecovered panics in the alert evaluator goroutine. Attackers can submit a crafted alert rule via the POST /api/v1/alert-rule endpoint to crash the dashboard process, which persists the rule and causes repeated crashes on restart, disabling all monitoring and control plane functionality.

CWE CWE-197
Vendor nezhahq
Product nezha
Published Sep 27, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Affected Versions

nezhahq / nezha
0 < 2.3.8

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
github.com: https://github.com/nezhahq/nezha/security/advisories/GHSA-2qc6-x993-hjq9 vulncheck.com: https://www.vulncheck.com/advisories/nezha-before-2.3.8-denial-of-service-via-alert-rule

Credits

๐Ÿ” sondt99