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NVD
NVD
added 2026/08/25 4:16 p.m.9 views

CVE-2026-55640

Nextcloud MCP Server is a production-ready MCP server that connects AI assistants to a Nextcloud instance. Prior to 0.117.2, the POST /webhooks/nextcloud endpoint in nextcloudmcpserver/vector/webhookreceiver.py has no authentication by default because WEBHOOKSECRET defaults to None and startup...

9.1CVSS0.00484EPSS
SaveExploits0References3
Github Security Blog
Github Security Blog
added 2026/08/25 4:04 p.m.8 views

nextcloud-mcp-server: Unauthenticated `POST /webhooks/nextcloud` allows arbitrary vector data deletion when `WEBHOOK_SECRET` is unset ( default )

Summary The POST /webhooks/nextcloud endpoint has no authentication by default: WEBHOOKSECRET defaults to None and is never required by startup validation. When unset, the receiver accepts any unauthenticated POST. The userid is taken directly from the attacker-supplied payload and passed to...

9.1CVSS5.4AI score0.00484EPSS
SaveExploits0References4Affected Software1
Cvelist
Cvelist
added 2026/08/25 4:03 p.m.28 views

CVE-2026-55640 Nextcloud MCP Server: Unauthenticated `POST /webhooks/nextcloud` allows arbitrary vector data deletion when `WEBHOOK_SECRET` is unset ( default )

Nextcloud MCP Server is a production-ready MCP server that connects AI assistants to a Nextcloud instance. Prior to 0.117.2, the POST /webhooks/nextcloud endpoint in nextcloudmcpserver/vector/webhookreceiver.py has no authentication by default because WEBHOOKSECRET defaults to None and startup...

9.1CVSS0.00484EPSS
SaveExploits0References3
OSV
OSV
added 2026/08/25 4:03 p.m.4 views

CVE-2026-55640 Nextcloud MCP Server: Unauthenticated `POST /webhooks/nextcloud` allows arbitrary vector data deletion when `WEBHOOK_SECRET` is unset ( default )

Nextcloud MCP Server is a production-ready MCP server that connects AI assistants to a Nextcloud instance. Prior to 0.117.2, the POST /webhooks/nextcloud endpoint in nextcloudmcpserver/vector/webhookreceiver.py has no authentication by default because WEBHOOKSECRET defaults to None and startup...

9.1CVSS5.6AI score
SaveExploits0References5
CVE
CVE
added 2026/08/25 4:03 p.m.22 views

CVE-2026-55640

Nextcloud MCP Server prior to 0.117.2 contains an authentication bypass in the POST /webhooks/nextcloud endpoint. The WEBHOOK_SECRET defaults to None and startup validation does not enforce it, allowing unauthenticated requests to handle_nextcloud_webhook(). The payload["user"]["uid"] field is at...

9.1CVSS5.4AI score0.00484EPSS
SaveExploits0References3
EUVD
EUVD
added 2026/08/25 4:03 p.m.6 views

EUVD-2026-65596

Nextcloud MCP Server is a production-ready MCP server that connects AI assistants to a Nextcloud instance. Prior to 0.117.2, the POST /webhooks/nextcloud endpoint in nextcloudmcpserver/vector/webhookreceiver.py has no authentication by default because WEBHOOKSECRET defaults to None and startup...

9.1CVSS5.4AI score0.00484EPSS
SaveExploits0References3
Cvelist
Cvelist
added 2026/08/25 3:40 p.m.35 views

CVE-2026-55581 mcp-shell: Secure Mode Allowlist Bypass via Default `/bin/bash` Executable

mcp-shell is an MCP server for running shell commands securely, auditably, and on demand. Prior to 0.6.0, the default Docker security.yaml includes /bin/bash in allowedexecutables, while security.go validates only the first token and checkBlockedPatternsAndCommands does not reject the shell...

8.4CVSS0.0034EPSS
SaveExploits0References4
OSV
OSV
added 2026/08/25 3:17 p.m.5 views

CVE-2026-55532 PraisonAI: Origin-validation bypass (startswith prefix match) enables unauthenticated cross-site request forgery against the PraisonAI MCP HTTP server

PraisonAI is a multi-agent teams system. Prior to praisonai 4.6.58, MCP HTTP Stream validateorigin uses requestorigin.startswithallowed, allowing the attacker-controlled localhost.attacker.com HTTP origin to satisfy the localhost allowlist. A webpage can send Content-Type: text/plain requests...

7.6CVSS5.5AI score
SaveExploits0References5
Kitploit
Kitploit
added 2026/08/24 7:29 p.m.3 views

Claude-Code-MCP-Injection-PoC

Claude Code: Travisamento del Prompt di Conferma dello Strumento MCP Una Proof-of-Concept PoC professionale che dimostra una vulnerabilità critica dell'interfaccia utente/UX in Claude Code di Anthropic. Questa vulnerabilità consente a un server MCP malevolo di indurre gli utenti ad approvare...

8.8CVSS5.6AI score0.34151EPSS
SaveExploits6
Kitploit
Kitploit
added 2026/08/24 10:57 a.m.3 views

toolbox

-Significant%20AI%2C%20fully%20reviewed-1f77b4 MCP-basierte Tools für Anwendungssicherheitstests für deinen Coding-Agenten. Kein Scanner – eine kollaborative Werkbank. Agenten tun sich schwer mit UI und zustandsbehafteten APIs; du bist in beidem gut. Sectool ermöglicht es dir, eine Anwendung über...

5.3AI score
SaveExploits0References3
Kitploit
Kitploit
added 2026/08/24 4:28 a.m.3 views

Malicious-MCP

Böswilliger MCP Dies ist ein Proof-of-Concept-Projekt, mit dem Sie einen MCP-Server bereitstellen können, der sich als jeder andere MCP-Server „tarnt". Dieser MCP fungiert als MCP „Proxy" und leitet einfach alle eingehenden Anfragen an einen vorgeschalteten MCP-Server weiter. Was ist ein MCP? Ein...

5.7AI score
SaveExploits0References9
CVE
CVE
added 2026/08/21 9:21 p.m.40 views

CVE-2026-53509

@aborruso/ckan-mcp-server (an MCP server for querying CKAN open data portals) is vulnerable to SSRF prior to version 0.4.106 . The validateServerUrl hostname check in src/utils/http.ts only blocked the literal string localhost, but hostname aliases such as ip6-localhost and ip6-loopback (defined ...

5.7CVSS5.8AI score0.00217EPSS
SaveExploits0References3
OSV
OSV
added 2026/08/21 9:21 p.m.8 views

CVE-2026-53509 @aborruso/ckan-mcp-server: SSRF via base_url allows access to internal networks (Potential fix bypass of CVE-2026-33060)

CKAN MCP Server is a tool for querying CKAN open data portals. A known vulnerability CVE-2026-33060 indicated tools including ckanpackagesearch and sparqlquery that accept a baseurl parameter had the risk of making HTTP requests to arbitrary endpoints without restriction. A fix was applied to...

5.7CVSS6AI score
SaveExploits0References5
Cvelist
Cvelist
added 2026/08/21 9:21 p.m.25 views

CVE-2026-53509 @aborruso/ckan-mcp-server: SSRF via base_url allows access to internal networks (Potential fix bypass of CVE-2026-33060)

CKAN MCP Server is a tool for querying CKAN open data portals. A known vulnerability CVE-2026-33060 indicated tools including ckanpackagesearch and sparqlquery that accept a baseurl parameter had the risk of making HTTP requests to arbitrary endpoints without restriction. A fix was applied to...

5.7CVSS0.00217EPSS
SaveExploits0References3
NVD
NVD
added 2026/08/21 9:17 p.m.10 views

CVE-2026-62316

Microsoft UFO open-source framework for intelligent automation across devices and platforms. Prior to 3.0.8, ufo/client/mcp/httpservers/linuxmcpserver.py binds a FastMCP streamable HTTP server to localhost:8010 but does not validate the Host, Origin, or Sec-Fetch-Site headers. An...

8.8CVSS0.00316EPSS
SaveExploits0References3
NVD
NVD
added 2026/08/21 6:16 p.m.19 views

CVE-2026-62674

Omnigent is an open-source AI agent framework and meta-harness for orchestrating coding agents. Prior to 0.3.0, PUT /sessions/sessionid/agent checks LEVELEDIT permission for a session but does not reject a bound shared or template agent whose agent.sessionid is None. An authenticated user with ed...

9CVSS0.00343EPSS
SaveExploits0References4
OSV
OSV
added 2026/08/21 5:47 p.m.20 views

CVE-2026-62674 Omnigent: Shared Agent Bundle Overwrite Leads to Authenticated Runner RCE

Omnigent is an open-source AI agent framework and meta-harness for orchestrating coding agents. Prior to 0.3.0, PUT /sessions/sessionid/agent checks LEVELEDIT permission for a session but does not reject a bound shared or template agent whose agent.sessionid is None. An authenticated user with ed...

9CVSS5.6AI score
SaveExploits0References6
Cvelist
Cvelist
added 2026/08/21 5:47 p.m.28 views

CVE-2026-62674 Omnigent: Shared Agent Bundle Overwrite Leads to Authenticated Runner RCE

Omnigent is an open-source AI agent framework and meta-harness for orchestrating coding agents. Prior to 0.3.0, PUT /sessions/sessionid/agent checks LEVELEDIT permission for a session but does not reject a bound shared or template agent whose agent.sessionid is None. An authenticated user with ed...

9CVSS0.00343EPSS
SaveExploits0References4
EUVD
EUVD
added 2026/08/21 5:47 p.m.12 views

EUVD-2026-64016

Omnigent is an open-source AI agent framework and meta-harness for orchestrating coding agents. Prior to 0.3.0, PUT /sessions/sessionid/agent checks LEVELEDIT permission for a session but does not reject a bound shared or template agent whose agent.sessionid is None. An authenticated user with ed...

9CVSS5.5AI score0.00343EPSS
SaveExploits0References4
CVE
CVE
added 2026/08/21 5:47 p.m.37 views

CVE-2026-62674

Omnigent (open-source AI agent framework) prior to 0.3.0 is vulnerable to an authenticated Remote Code Execution via the PUT /sessions/{session_id}/agent endpoint. The endpoint validates LEVEL_EDIT permission for the session but fails to reject a bound shared or template agent whose agent.session...

9CVSS5.5AI score0.00343EPSS
SaveExploits0References4
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