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CVE-2026-90690— 0x4m4 HexStrike AI API Tools Endpoint hexstrike_server.py subprocess.Popen os command injection

Quick assessment

Affected
0x4m4 HexStrike AI
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 0x4m4 HexStrike AI 的一个版本（截至提交 ）中发现了一个弱点。受影响的组件是 API Tools 端点中的 文件里的 函数。通过对参数 、 、 、 或 、 进行操纵，可导致 操作系统命令注入（OS command injection）。该攻击可远程发起。利用该漏洞的公开 PoC（Proof of Concept）已可供公众使用，可用于实际攻击。该产品不使用版本号进行版本管理，因此无法提供受影响与未受影响版本的具体信息。目前修复工作正在进行中。

CVSS 7.3 · High
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I. Basic Information for CVE-2026-90690

Vulnerability Information
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Vulnerability Title
0x4m4 HexStrike AI API Tools Endpoint hexstrike_server.py subprocess.Popen os command injection
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
0x4m4 HexStrike AI d689933ff579d839c676c82b231f8e98326c5f04 cpe:2.3:a:0x4m4:hexstrike_ai:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-90690

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-90690

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Patches & Fixes for CVE-2026-90690 (1)

Mailing List Discussions for CVE-2026-90690 (1)

Same Patch Batch · 0x4m4 · 2026-09-14 · 4 CVEs total

CVE-2026-90691 8.3 HIGH 0x4m4 HexStrike AI API Files Endpoint hexstrike_server.py FileOperationsManager path trave
CVE-2026-90619 7.3 HIGH 0x4m4 HexStrike AI Execute Endpoint hexstrike_server.py os command injection
CVE-2026-90620 7.3 HIGH 0x4m4 HexStrike AI API Command Endpoint hexstrike_server.py missing authentication

IV. Related Vulnerabilities

Same product: HexStrike AI
Same vendor: 0x4m4
Same weakness: CWE-78

V. Comments for CVE-2026-90690

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