CVE-2026-100394: nezhahq nezha · Race Condition
Affects nezhahq nezhaSource CVE Database V5
Not known to be exploited · CVSS 6.5 Medium : upgrade to 2.2.11 when convenient.
Data as of 29 Oct 2026, 20:06 UTC
Thin evidence
One scorer or none| CNA (GitHub_M) | CVSS 3.1 | 6.5 |
|---|
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 36% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 2.2.11
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 14 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
Upgrade nezha and github.com/nezhahq/nezha to 2.2.11.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| nezhahqnezha | Affected
| Fixed in
|
Gogithub.com/nezhahq/nezhapkg:golang/github.com/nezhahq/nezhaOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Upgrade Nezha Monitoring to version 2.2.11 or later, where this race condition vulnerability is fixed. No other mitigation is required as the issue is resolved in these versions.
Description
A race condition vulnerability in Nezha Monitoring versions 2.2.7 through 2.2.10 allows a RoleMember to cause a nil pointer dereference in the ServiceSentinel worker. This leads to a panic that terminates the dashboard process, disrupting the web interface, REST API, and agent connections for all tenants. The issue affects availability only and does not expose or modify data. Fixed in version 2.2.11 and later.
References
- github.com/nezhahq/nezha/security/advisories/GHSA-qjpp-gffx-2wm9 (opens in a new tab)
- github.com/nezhahq/nezha/commit/c893aa57867d8a3d608e2f2f16d1594c9766cdf3 (opens in a new tab)
- github.com/nezhahq/nezha/releases/tag/v2.2.11 (opens in a new tab)
- github.com/nezhahq/nezha/releases/tag/v2.3.0 (opens in a new tab)