CVE-2025-35028: HexStrike AI MCP Server Command Injection

Severity: critical (CVSS 9.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 5.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-11-30 · updated 2026-10-18
Weakness: CWE-78

Description

By providing a command-line argument starting with a semi-colon ; to an API endpoint created by the EnhancedCommandExecutor class of the HexStrike AI MCP server, the resultant composed command is executed directly in the context of the MCP server’s normal privilege; typically, this is root. There is no attempt to sanitize these arguments in the default configuration of this MCP server at the affected version (as of commit 2f3a5512 in September of 2025).

Affected products

0x4m4 HexStrike AI: 33267047667b9accfbf0fdac1c1c7ff12f3a5512

References

https://github.com/0x4m4/hexstrike-ai/issues/115
https://takeonme.org/gcves/GCVE-1337-2025-00000000000000000000000000000000000000000000000000111111111111111111111111000000000000000000000000000000000000000000000000000000011

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