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CVE-2026-55640

🗓️ 25 Aug 2026 16:03:28Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov👁 58 Views🌐 WEB

Unauthenticated vector data deletion in Nextcloud MCP Server up to 0.117.2 via WEBHOOK_SECRET unset.

Related
Detection
Affected
Refs
Paths
Vulners
Node
[
  {
    "vendor": "cbcoutinho",
    "product": "nextcloud-mcp-server",
    "versions": [
      {
        "version": "< 0.117.2",
        "status": "affected"
      }
    ]
  }
]
ParameterPositionPathDescriptionCWE
payload["user"]["uid"]request body/webhooks/nextcloudUnauthenticated endpoint that allows an attacker to delete or trigger re-indexing of vector embeddings for any user by providing a forged 'uid' in the request body.CWE-306

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09 Sep 2026 21:07Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.19.1
EPSS0.0073
SSVC
58