Exploit discussion active in current signal (1 latest mentions)
Recommended action window: High priority (within 72h)
NVD description
MCP Manager for Claude Desktop execute-command Command Injection Sandbox Escape Vulnerability. This vulnerability allows remote attackers to bypass the sandbox on affected installations of MCP Manager for Claude Desktop. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the processing of MCP config objects. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to escape the sandbox and execute arbitrary code in the context of the current process at medium integrity. Was ZDI-CAN-27810.
Priority
LOW
Exploitation
NONE
PoC
YES
Patch
AVAILABLE
Momentum
STABLE
| Date | Total | Labels |
|---|
| 2026-01-28 | 1 | Disclosure1 |
| 2026-02-04 | 1 | General1 |
| 2026-03-06 | 1 | Patch1 |
| 2026-03-07 | 1 | General1 |
Top 5 Trending CVEs: 1 - CVE-2023-20198 2 - CVE-2023-50428 3 - CVE-2026-0757 4 - CVE-2024-23225 5 - CVE-2026-20700 #cve #cvetrends #cveshield #cybersecurity https://www.cveshield.com/dashboard
Post summary
The post simply lists five trending CVEs with no additional security information provided.
Yes, the Feb 2026 reports (including LayerX's zero-click RCE via Google Calendar in Desktop Extensions and CVE-2026-0757 in MCP Manager) apply directly to Claude Desktop on macOS when using MCP features/servers/extensions. These run unsandboxed with full system access on Mac, enabling sandbox escapes, command injection, and potential takeover via malicious repos or invites. Privacy retention issues also persist. Use the web version or official patches only. What specific MCP tool were you testing?
Post summary
The post highlights vulnerabilities in Claude Desktop’s MCP components and emphasizes the use of official patches or the web version as a mitigation strategy.
MCP Manager RCE (CVE-2026-0757) ist der beste Beweis: Wer AI-Agents ohne Hardening auf sein System lässt, hat die Kontrolle über seine Sandbox verloren. 🔒 Vulnerability Management ist kein optionales Feature, es ist das Fundament. 🧵
Post summary
The tweet notes a remote code execution flaw (CVE‑2026‑0757) in MCP Manager and stresses the need to harden AI agents, but it offers no PoC, exploit code, patch, or active exploitation evidence.
[ZDI-26-023|CVE-2026-0757] (0Day) MCP Manager for Claude Desktop execute-command Command Injection Sandbox Escape Vulnerability (CVSS 8.8; Credit: Peter Girnus (@gothburz), Brandon Niemczyk of Trend Zero Day Initiative) https://www.zerodayinitiative.com/advisories/ZDI-26-023/
Post summary
Zero-Day advisory for CVE-2026-0757, describing a command‑injection vulnerability in MCP Manager for Claude Desktop (CVSS 8.8), with a PoC link but no patch, active exploitation, or false‑positive claim.