CVE-2026-90690 0x4m4 HexStrike AI - Command Injection

0x4m4 HexStrike AI contains a command injection caused by manipulation of arguments in subprocess.Popen in hexstrike_server.py API Tools Endpoint, letting remote attackers execute arbitrary OS commands, exploit requires no special privileges.

CVSS base score 7.3 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
2.11% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Command Injection
Impact
Remote Code Execution
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Published
14 September 2026
Updated
15 October 2026
Weakness
CWE-77

Vendor fix

Update to the fixed version once available or apply the in-progress fix.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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