CVE-2026-90620

0x4m4 HexStrike AI API Command Endpoint hexstrike_server.py missing authentication

State: Published
Severity: 6.9 Medium
Published: Sep 14, 2026
Updated: Sep 14, 2026
Reserved: Sep 12, 2026

Description

A vulnerability was determined in 0x4m4 HexStrike AI up to d689933ff579d839c676c82b231f8e98326c5f04. The impacted element is an unknown function of the file hexstrike_server.py of the component API Command Endpoint. This manipulation causes missing authentication. The attack can be initiated remotely. The exploit has been publicly disclosed and may be utilized. Continious delivery with rolling releases is used by this product. Therefore, no version details of affected nor updated releases are available. The project was informed of the problem early through an issue report but has not responded yet.

Scores

CVSS	Score	Vector	Source
4.0	6.9 Medium	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	VulDB
3.1	7.3 High	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	VulDB
3.0	7.3 High	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R	VulDB
2.0	7.5 High	AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR	VulDB

Weaknesses

CWE-306 Missing Authentication
CWE-287 Improper Authentication

Affected Products

Product	Versions
HexStrike AI0x4m4	d689933ff579d839c676c82b231f8e98326c5f04Affected

References

VDB-403202 | 0x4m4 HexStrike AI API Command Endpoint hexstrike_server.py missing authenticationvdb-entry
VDB-403202 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
CVE-2026-90620 | CVE Analysis and Reportthird-party-advisory
Submit #914813 | 0x4m4 hexstrike-ai v1.0 rcethird-party-advisory
https://github.com/0x4m4/hexstrike-ai/issues/223exploitissue-tracking

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