HighVulnerabilityLLM-specific

CVE-2026-0757: MCP Manager for Claude Desktop command injection sandbox escape

Source: NVD(opens in a new tab)
Identifier: CVE-2026-0757
Published: January 22, 2026
Record updated: October 9, 2026

Known exploitation: Not listed in the CISA Known Exploited Vulnerabilities catalog at the last check.
EPSS: 1.3%

Summary

MCP Manager for Claude Desktop contains a command injection sandbox escape flaw tracked as CVE-2026-0757, reported as ZDI-CAN-27810. The flaw lies in processing of MCP config objects, where a user-supplied string is used in a system call without proper validation. A remote attacker who gets a target to visit a malicious page or open a malicious file can escape the sandbox and run arbitrary code at medium integrity.

Mitigation

The source does not state a fix yet. Check the original advisory for updates.

Details

Scores and exploitation

EPSS: 1.3%Estimated probability that this CVE is exploited in the next 30 days, from the FIRST Exploit Prediction Scoring System. Read on November 4, 2026.

Weaknesses and techniques

Weakness (CWE): CWE-78
Attack pattern (CAPEC): CAPEC-88
AI threat technique (MITRE ATLAS): AML.T0054

Affected

Vendors: Anthropic

Classification

Attack type: Jailbreak,
Other
Attack sophistication: Moderate
AI component targeted: Plugin
Impact: Confidentiality,
Integrity,
Availability
Labels: security

How this record was produced

Summaries, mitigations and labels on this page are generated automatically from the source. The linked source is authoritative. The source gives this advisory a description and no title, so the title above is a headline generated from the source text.

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-0757

First tracked: February 15, 2026 at 08:52 PM ET, from NVD/CVE Database

Classifier: claude-haiku-5-5, prompt v4

Classifier confidence: 85% (self-assessed)

Topics

Model Context Protocol

Summary

Mitigation

Topics

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