1321 matches found
CVE-2026-55640
creationtimestamp| type| source ---|---|--- 2026-08-25 18:08:31+00:00| seen| https://bsky.app/profile/stemshop.bsky.social/post/3mtwfys2tk52p 2026-08-25 18:35:19+00:00| published-proof-of-concept| https://github.com/cbcoutinho/nextcloud-mcp-server/security/advisories/GHSA-8vh3-g2qg-2h2c 2026-08-2...
CVE-2026-55557
browse-mcp is a Playwright-based headless-browser MCP server for MCP-capable agents. Prior to 0.8.2, browserdownload writes a fetched response body to joinsavedir, filename without validating the caller-controlled savedir, while browsersavestate and browserloadstate honor a caller-controlled path...
browse-mcp has an arbitrary file write via unconfined download and state paths
Impact browserdownload wrote a fetched file to joinsavedir, filename with no validation of savedir, and browsersavestate / browserloadstate honored an explicit path unchanged. The MCP caller controls these arguments a malicious MCP client, or an autonomous agent steered by indirect prompt injecti...
EUVD-2026-65581
browse-mcp is a Playwright-based headless-browser MCP server for MCP-capable agents. Prior to 0.8.2, browserdownload writes a fetched response body to joinsavedir, filename without validating the caller-controlled savedir, while browsersavestate and browserloadstate honor a caller-controlled path...
CVE-2026-55557 browse-mcp: Arbitrary file write via unconfined download and state paths
browse-mcp is a Playwright-based headless-browser MCP server for MCP-capable agents. Prior to 0.8.2, browserdownload writes a fetched response body to joinsavedir, filename without validating the caller-controlled savedir, while browsersavestate and browserloadstate honor a caller-controlled path...
CVE-2026-55557 browse-mcp: Arbitrary file write via unconfined download and state paths
browse-mcp is a Playwright-based headless-browser MCP server for MCP-capable agents. Prior to 0.8.2, browserdownload writes a fetched response body to joinsavedir, filename without validating the caller-controlled savedir, while browsersavestate and browserloadstate honor a caller-controlled path...
CVE-2026-55557
browse-mcp is a Playwright-based headless-browser MCP server for MCP-capable agents. Prior to 0.8.2 , the browser_download function writes a fetched response body to join(save_dir, filename) without validating the caller-controlled save_dir, and browser_save_state / browser_load_state honor a cal...
CVE-2026-55580
mcp-shell is an MCP server for running shell commands securely, auditably, and on demand. Prior to 0.6.0, config.go initializes Security.Enabled to false, and when MCPSHELLSECCONFIGFILE is unset, main.go starts the documented bare-binary deployment without a security policy...
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...
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...
GHSA-8VH3-G2QG-2H2C 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...
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...
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...
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...
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...
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...
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...
PT-2026-81391
Name of the Vulnerable Software and Affected Versions Nextcloud MCP Server versions prior to 0.117.2 Description The POST /webhooks/nextcloud endpoint lacks authentication by default because the WEBHOOK SECRET variable defaults to None and is not required during startup validation. When this secr...
PT-2026-81115
Commit: f855e54d5b7bc1c91b977574a03b91eff6b86bb6 Component: mcp-servers/python/python sandbox server/src/python sandbox server/server fastmcp.py Vulnerability RestrictedPython's sandbox in ContextForge's python sandbox server sub-project allows arbitrary Python execution via three compounding...
