CVE-2026-105113 PUBLISHED

Nezha 1.8.0 before 2.3.13 Denial of Service via Notification Mutex Deadlock

Assigner: VulnCheck
Reserved: 03.10.2026 Published: 03.10.2026 Updated: 03.10.2026

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:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CVSS Score: 7.1

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	Low
User Interaction	None

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS Score: 6.5

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	None
Privileges Required	Low	Integrity Impact	None
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	nezhahq
Product	nezha
Versions	Default: unaffected affected from 1.8.0 to 2.3.13 (excl.) Version 2.3.13 is unaffected

CVE-2026-105113 PUBLISHED

Nezha 1.8.0 before 2.3.13 Denial of Service via Notification Mutex Deadlock

Metrics

Product Status

Credits

References

Problem Types