CVE-2026-105112

Nezha from 1.8.0 before 2.3.13 contains a lock-order inversion in UpdateGroup and DeleteGroup that allows authenticated non-admin users to deadlock the alerting subsystem. Attackers can concurrently call the notification-group and batch-delete endpoints with oversized id lists to widen the race and close an ABBA cycle, permanently killing alert delivery until restart.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.6 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/nezhahq/nezha/security/advisories/GHSA-53vr-p24v-qvwf
https://www.vulncheck.com/advisories/nezha-1.8.0-before-2.3.13-deadlock-dos-via-notification-group-endpoints
https://github.com/nezhahq/nezha/security/advisories/GHSA-53vr-p24v-qvwf

Configurations

No configuration.

History

05 Oct 2026, 16:17

Type	Values Removed	Values Added
References	~~() https://github.com/nezhahq/nezha/security/advisories/GHSA-53vr-p24v-qvwf -~~	() https://github.com/nezhahq/nezha/security/advisories/GHSA-53vr-p24v-qvwf -

03 Oct 2026, 14:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-03 14:16

Updated : 2026-10-05 16:17

NVD link : CVE-2026-105112

Mitre link : CVE-2026-105112

CVE.ORG link : CVE-2026-105112

JSON object : View

Products Affected

No product.

CWE

CWE-362

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

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