What is the CVSS score of CVE-2026-26029?

CVE-2026-26029 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

How to fix or mitigate CVE-2026-26029?

Within 24 hours: Inventory all sf-mcp-server deployments and disable the tool in production environments until mitigation is confirmed. Within 7 days: Implement network segmentation to restrict sf-mcp-server's outbound access and review recent CLI command logs for suspicious activity. Within 30 days: Monitor vendor communications for patch availability and establish a controlled testing environment for validation before re-enabling.

CVE-2026-26029

HIGH

OS Command Injection (CWE-78)

2026-02-11 security-advisories@github.com

Command Injection

7.5

CVSS 3.1 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

7.5 HIGH

AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 22:02 vuln.today

CVE Published

Feb 11, 2026 - 22:15 nvd

HIGH 7.5

DescriptionGitHub Advisory

sf-mcp-server is an implementation of Salesforce MCP server for Claude for Desktop. A command injection vulnerability exists in sf-mcp-server due to unsafe use of child_process.exec when constructing Salesforce CLI commands with user-controlled input. Successful exploitation allows attackers to execute arbitrary shell commands with the privileges of the MCP server process.

AnalysisAI

Unsafe command construction in sf-mcp-server's Salesforce CLI integration allows remote code execution when processing user-supplied input through child_process.exec. An attacker can inject arbitrary shell commands that execute with the privileges of the MCP server process, potentially compromising systems running Claude for Desktop with this extension. No patch is currently available.

Technical ContextAI

Classified as CWE-78 (OS Command Injection). sf-mcp-server is an implementation of Salesforce MCP server for Claude for Desktop. A command injection vulnerability exists in sf-mcp-server due to unsafe use of child_process.exec when constructing Salesforce CLI commands with user-controlled input. Successful exploitation allows attackers to execute arbitrary shell commands with the privileges of the MCP server process.