Vulnerability in Nezhahq Nezha
CVE-2026-101085
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.
Published .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/nezhahq/nezha/security/advisories/GHSA-2qc6-x993-hjq9 (vendor-advisory)
- www.vulncheck.com/advisories/nezha-before-2.3.8-denial-of-service-via-alert-rule (third-party-advisory)
Frequently asked questions
- What is CVE-2026-101085?
- CVE-2026-101085 is a medium-severity vulnerability in Nezhahq Nezha, classified under CWE-197. CVSS score: 6.5/10. Published 2026-09-27.
- How severe is CVE-2026-101085?
- Medium severity. CVSS v3 base score is 6.5 out of 10.