CVE-2026-90690

0x4m4 HexStrike AI API Tools Endpoint hexstrike_server.py subprocess.Popen os command injection

HIGH
7.3
CVSS Score
Published: September 14, 2026 at 06:30 AM UTC
Updated: September 16, 2026 at 03:18 PM UTC
1 product affected across 1 vendorHexStrike AI

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Severity
HIGH7.3
Exploit prediction
EPSS 2%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

d689933ff579d839c676c82b231f8e98326c5f04

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (6)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/403223
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/403223/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/cve/CVE-2026-90690
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/914892
ExploitIssue Tracking
Source: cverecord
https://github.com/0x4m4/hexstrike-ai/issues/224
Issue TrackingPatch
Source: cverecord
https://github.com/0x4m4/hexstrike-ai/pull/266

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.3HIGHVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-78CWE-77

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