CVE-2026-105113

Nezha 1.8.0 before 2.3.13 Denial of Service via Notification Mutex Deadlock

State: Published
Severity: 7.1 High
Published: Oct 3, 2026
Updated: Oct 5, 2026
Reserved: Oct 3, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	7.1 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N	VulnCheck
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	VulnCheck

Weaknesses

CWE-667 Improper Locking

Affected Products

Product	Versions
nezhanezhahq	1.8.0 to before 2.3.13Affected 2.3.13Not affected

References

GitHub Security Advisory (GHSA-7j7v-j77m-6g3m)vendor-advisory
VulnCheck Advisory: Nezha 1.8.0 before 2.3.13 Denial of Service via Notification Mutex Deadlockthird-party-advisory

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.