Medium severity · published Oct 3, 2026
CVE-2026-105113
Nezha 1.8.0 before 2.3.13 Denial of Service via Notification Mutex Deadlock
6.5
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 15% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NE
nezha · nezhahq
1.8.0 before 2.3.13 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-105113
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-105113
vendor-advisory
https://github.com/nezhahq/nezha/security/advisories/GHSA-7j7v-j77m-6g3m
third-party-advisory
https://www.vulncheck.com/advisories/nezha-1.8.0-before-2.3.13-denial-of-service-via-notification-mutex-deadlock
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