All vulnerabilities
CVE-2026-105113GHSA-7j7v-j77m-6g3m

Nezha 1.8.0 before 2.3.13 Denial of Service via Notification Mutex Deadlock

nezhahq nezha
Open in ThreatlineRecord JSON
CVSS
7.1High
ExploitationPublic exploit codeCISA's assessment says proof of concept code is public, assessed 5 Oct 2026. Not in the KEV catalogCISA via CVE List
Exploit odds (EPSS)0.20%Chance of exploitation activity in the next 30 days, higher than 9% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in2.3.13Fixed versionCVE List
Published3 Oct 2026Updated 5 Oct 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

Nezha Dashboard from 1.8.0 before 2.3.13 contains an improper locking vulnerability where a non-deferred mutex unlock leaks on a nil-map panic path. Any authenticated non-admin member can issue four notification API calls to permanently deadlock the alerting subsystem, then exhaust memory with blocking requests.

Text from CVE List

Affected versions 2

  • nezhaaffected: 1.8.0 before 2.3.13CVE List
  • nezhaunaffected: 2.3.13CVE List

References 2