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Security2026-09-19 · source-backed
CVE-2026-77339, published September 18. With MCP SSE enabled, the SSE transport accepts browser-origin requests and dispatches into process-compose tools before any Host check, Origin check or caller-secret check. The project's REST API has token middleware; the MCP listener starts separately and inherits none of it, and SSE is the default when mcp_server.transport is omitted. GitHub Advisory Bolting MCP onto an existing service means re-deriving every auth decision, because you almost certainly aren't inheriting them.
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NVD posted nine advisories on August 25, clustering into one shape: a local server assuming a browser can't reach it. PraisonAI validated MCP origins with request_origin.startswith(allowed) against a localhost allowlist, so an attacker-registered localhost.attacker.com passes...
Between September 14 and September 15, NVD published seven entries hitting MCP infrastructure. I read all of them expecting to find something clever. There's nothing clever in any of them. CVE-2026-57124, 9.8, published September 14. PraisonAI's default UI exposes POST /api/mc...
Full 10.0. Network vector, low complexity, no authentication, no user interaction, high impact on confidentiality, integrity and availability. CVE-2026-79696, published September 9, is a code injection flaw in adk web affecting Google's Agent Development Kit for Python 2.0.0 t...
The trick is one line in a file you never read. Manifold Security published eight findings across seven coding agents (Claude Code, Codex, Cursor, Grok Build, Qwen Code, goose, Hermes Agent) that all reduce to the same mechanism. A repository's own .git/config sets core.fsmoni...
— Security researcher Ari Marzouk disclosed 30+ vulnerabilities (24 CVEs) affecting Cursor, GitHub Copilot, Windsurf, Zed, Kiro, Roo Code, Junie, and Cline. The devastating finding: every tested AI IDE is vulnerable because none accounts for autonomous LLM agent behavior in th...
Your read-only flag is a claim, not a guarantee. Two independent Postgres MCP servers proved it on September 4. Postgres MCP Pro got CVE-2026-85620 at CVSS 9.2. The bug is one line of reasoning in safe_sql.py: the validator checks function names on FuncCall AST nodes. A functi...
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