CVE-2026-90690CWE-77CWE-78command-injection

CVE-2026-90690

High · published September 14, 2026

CVSS v3.1
7.3
EPSS
2%
Percentile
81.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.3 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CVSS v4.0
6.9 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
EPSS
0.02109 · 81.6th percentile
Weaknesses
CWE-77 · Improper Neutralization of Special Elements used in a Command ('Command Injection'); CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2026-09-14T11:17Z
References (6)
EPSS history
Timeline
  • 15 SEP 03:22Z
    EPSS moved — → 1%
    epss
  • 14 SEP 06:30Z
    0x4m4 HexStrike AI API Tools Endpoint hexstrike_server.py subprocess.Popen os command injection
    cvelistv5