Log in Start free

Vulnerability · Published Sep 14, 2026 · Assigned by VulDB

CVE-2026-906900x4m4 HexStrike AI API Tools Endpoint hexstrike_server.py subprocess.Popen os command injection

High 7.3

In plain English

A high-severity OS command injection in HexStrike AI from 0x4m4. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 2.1% (higher than 82% of all known vulnerabilities).

Severity (CVSS 3.1)7.3High
Exploit odds (30 days)2.1%top 18.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

A weakness has been identified in 0x4m4 HexStrike AI up to d689933ff579d839c676c82b231f8e98326c5f04. The affected element is the function subprocess.Popen of the file hexstrike_server.py of the component API Tools Endpoint. Executing a manipulation of the argument additional_args/target/username/password/scan_type/payload can lead to os command injection. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks. This product does not use versioning. This is why information about affected and unaffected releases are unavailable. A fix appears to be in progress.

Affected products (as reported)

VendorProductVersions
0x4m4 HexStrike AI d689933ff579d839c676c82b231f8e98326c5f04

Weakness: CWE-78, CWE-77 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

References