Missing Authentication in 0x4m4 HexStrike AI API Command Endpoint
CVE-2026-90620

6.9MEDIUM

Key Information:

Vendor

0x4m4

Status
Hexstrike Ai
Vendor
CVE Published:
14 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-90620?

A vulnerability has been identified in 0x4m4 HexStrike AI that exposes the API Command Endpoint's functionality due to missing authentication in the hexstrike_server.py file. This flaw allows unauthorized remote exploitation, potentially compromising the system. Users should be aware that the product employs continuous delivery with rolling releases, indicating that version details of both affected and updated releases may not be explicitly available. The issue was reported to the developers, but there has been no response or acknowledgment of the problem as of now.

Affected Version(s)

HexStrike AI d689933ff579d839c676c82b231f8e98326c5f04

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-90620 - Proof of Concept

References

https://vuldb.com/vuln/403202
vdb-entry
https://vuldb.com/vuln/403202/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-90620
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

ez-lbz (VulDB User)
VulDB CNA Team
.