Exploit discussion active in current signal (1 latest mentions)
Recommended action window: High priority (within 72h)
Priority
LOW
Exploitation
NONE
PoC
YES
Patch
NONE
Momentum
STABLE
| Date | Total | Labels |
|---|
| 2026-06-15 | 2 | General1PoC1 |
| 2026-08-21 | 1 | Disclosure1 |
I officially got another CVE (CVE-2026-54449) for the MCP STDIO vulnerability family which was disclosed back in April, this one is on LangBot! https://t.co/tYooM4mY8L
Post summary
The tweet announces CVE‑2026‑54449, part of the MCP STDIO family, but provides no further technical details, PoC, patch info, or evidence of exploitation.
CVE-2026-54449 (CVSS 8.8): LangBot's Extensions MCP StdioServerParameters runs user-set STDIO command/args as a server-side subprocess — no authorization boundary. Add an STDIO MCP → RCE as LangBot. Through 4.10.7; no official fix. Found by OX Security. #CVE #MCP #AppSec #InfoSec
Post summary
OX Security discloses CVE‑2026‑54449, a high‑severity remote code execution flaw in LangBot’s MCP module, with no official fix yet.
🚨 #CVE-2026-54449: Critical MCP STDIO Flaw in LangBot Exposes #AI Pipelines to Remote Code Execution + Video https://undercodetesting.com/cve-2026-54449-critical-mcp-stdio-flaw-in-langbot-exposes-ai-pipelines-to-remote-code-execution-video/ Educational Purposes!
Post summary
The tweet announces CVE-2026-54449, a critical MCP STDIO vulnerability in LangBot that permits remote code execution, and includes a video likely demonstrating the flaw.