CVE-2026-105113 json
Nezha 1.8.0 before 2.3.13 Denial of Service via Notification Mutex Deadlock
published 2026-10-03 36 d ago modified 2026-10-05 34 d ago also EUVD-2026-92017
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 15%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- nezhahq nezha 2.3.13
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 34 d ago
Exploit prediction
0.24% chance of exploitation in the next 30 days, higher than 15% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/nezhahq/nezha/security/advisories/GHSA-7j7v-j77m-6g3m referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 7.1 | 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 |
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| CNA | 4.0 | 7.1 | 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected products
- nezhahq nezha
Classification
- Weakness
-
- CWE-667 Improper Locking
References
-
github.com
/nezhahq/nezha/security/advisories/GHSA-7j7v-j77m-6g3m
vendor-advisory, exploit
-
vulncheck.com
/advisories/nezha-1.8.0-before-2.3.13-denial-of-service-via-notification-mutex-deadlock
third-party-advisory
Sources
- CVE List CVE-2026-105113
- NVD CVE-2026-105113
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