CVE-2026-105113 (GCVE-0-2026-105113)

Vulnerability from cvelistv5 – Published: 2026-10-03 12:14 – Updated: 2026-10-03 12:14
VLAI
Title
Nezha 1.8.0 before 2.3.13 Denial of Service via Notification Mutex Deadlock
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.
Severity
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
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
nezhahq nezha Affected: 1.8.0 , < 2.3.13 (semver)
Unaffected: 2.3.13 (semver)
Create a notification for this product.
Date Public
2026-09-19 00:00
Credits
sondt99
Show details on NVD website
To clipboard 

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          "defaultStatus": "unaffected",
          "packageURL": "pkg:golang/github.com/nezhahq/nezha",
          "product": "nezha",
          "vendor": "nezhahq",
          "versions": [
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              "status": "affected",
              "version": "1.8.0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "2.3.13",
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            }
          ]
        }
      ],
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          "type": "reporter",
          "value": "sondt99"
        }
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      "descriptions": [
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        }
      ],
      "metrics": [
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            "attackRequirements": "NONE",
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            "baseSeverity": "HIGH",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "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",
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            "vulnIntegrityImpact": "NONE"
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            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-667",
              "description": "Improper Locking",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-03T12:14:39.317Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "GitHub Security Advisory (GHSA-7j7v-j77m-6g3m)",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://github.com/nezhahq/nezha/security/advisories/GHSA-7j7v-j77m-6g3m"
        },
        {
          "name": "VulnCheck Advisory: Nezha 1.8.0 before 2.3.13 Denial of Service via Notification Mutex Deadlock",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/nezha-1.8.0-before-2.3.13-denial-of-service-via-notification-mutex-deadlock"
        }
      ],
      "title": "Nezha 1.8.0 before 2.3.13 Denial of Service via Notification Mutex Deadlock",
      "x_generator": {
        "engine": "vulncheck-endgame"
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    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-105113",
    "datePublished": "2026-10-03T12:14:39.317Z",
    "dateReserved": "2026-10-03T12:04:36.963Z",
    "dateUpdated": "2026-10-03T12:14:39.317Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}



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Nomenclature

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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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