CVE-2025-35028 HexStrike AI MCP Server Command Injection
Attackers can execute arbitrary commands with root privileges by injecting semi-colons into API arguments in the HexStrike AI MCP server.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-35028?
CVE-2025-35028 is a critical command injection vulnerability in 0x4m4 HexStrike AI, published on 30 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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).
Weakness: CWE-78
Which versions are affected by CVE-2025-35028?
How do I fix CVE-2025-35028?
No fix has been published for CVE-2025-35028 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2025-35028 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-35028 exists.
Sources
Also known as GHSA-2j8m-rmq4-rcw5.