CVE-2026-90690 Details
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.
A remote code execution vulnerability has been identified in 0x4m4 HexStrike AI versions prior to d689933ff579d839c676c82b231f8e98326c5f04. The issue arises in the API Tools Endpoint, specifically within the subprocess.Popen function in the hexstrike_server.py file. The vulnerability allows for OS command injection by manipulating user-supplied arguments such as additional_args, target, username, password, and scan_type. This exploitation can be executed remotely, and while a fix is reportedly in progress, the vulnerability has been made public and could be actively exploited.
A fix for the command injection vulnerability via 'additional_args' has been proposed and is pending review. Users are advised to monitor the project's GitHub repository for updates.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 14, 2026CISA-ADP
Assessed Sep 16, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/0x4m4/hexstrike-ai/issues/224 | [email protected] | ExploitIssue TrackingTechnical AnalysisVendor |
| https://github.com/0x4m4/hexstrike-ai/pull/266 | [email protected] | Vendor |
| https://vuldb.com/cve/CVE-2026-90690 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/submit/914892 | [email protected] | Issue TrackingPermission Required |
| https://vuldb.com/vuln/403223 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/vuln/403223/cti | [email protected] | Content Wall |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-77 | Improper Neutralization of Special Elements used in a Command ('Command Injection') | [email protected] |
| CWE-78 | Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| 0x4m4 HexStrike AI | All versions |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 16, 2026 | CVE Modified | CISA-ADP |
| Sep 14, 2026 | New CVE Received | [email protected] |