Description
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.
Published: 2026-10-03
Score: 6 Medium
EPSS: n/a
KEV: No
AI Analysis

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Remediation

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Advisories

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History

Sat, 03 Oct 2026 14:00:00 +0000

Type Values Removed Values Added
Description 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.
Title Nezha 1.8.0 before 2.3.13 Deadlock DoS via notification-group endpoints
Weaknesses CWE-362
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 6, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}

Subscriptions

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-03T12:14:38.663Z

Reserved: 2026-10-03T12:04:36.963Z

Link: CVE-2026-105112

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-03T14:16:37.677

Modified: 2026-10-03T14:16:37.677

Link: CVE-2026-105112

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses