high8.7
CVE-2026-50287
AgenticMail gives AI agents real email addresses and phone numbers.
Impact
AgenticMail gives AI agents real email addresses and phone numbers. Prior to version 0.9.27, @agenticmail/mcp exposes a Streamable HTTP transport when started with --http or MCP_HTTP=1. In that mode, the /mcp endpoint accepts requests without any HTTP authentication layer. A remote client can initialize a session and call tools directly. This issue has been patched in version 0.9.27.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | @agenticmail/mcp | < 0.9.27 | 0.9.27 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-63gr-g7jc-v8rg
- https://github.com/agenticmail/agenticmail/security/advisories/GHSA-63gr-g7jc-v8rg
- https://github.com/agenticmail/agenticmail/commit/7b9b05d973676e9f3d097c08b8e649f59bfc15d0
- https://github.com/agenticmail/agenticmail/commit/7d1791da7c8c8bd4e70d7081db48e18ab55f6736
- https://github.com/agenticmail/agenticmail/blob/7b9b05d973676e9f3d097c08b8e649f59bfc15d0/CHANGELOG.md?plain=1#L10
- https://github.com/agenticmail/agenticmail/blob/7b9b05d973676e9f3d097c08b8e649f59bfc15d0/packages/mcp/README.md?plain=1#L13
- https://github.com/agenticmail/agenticmail/blob/7b9b05d973676e9f3d097c08b8e649f59bfc15d0/packages/mcp/src/index.ts#L311
- https://nvd.nist.gov/vuln/detail/CVE-2026-50287