What’s Vulnerable › Vulnerabilities

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

• Severity: high (CVSS 7.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-14 · updated 2026-09-16
• Weakness: CWE-77

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 products

• 0x4m4 HexStrike AI: d689933ff579d839c676c82b231f8e98326c5f04

References

• https://github.com/0x4m4/hexstrike-ai/issues/224
• https://github.com/0x4m4/hexstrike-ai/pull/266
• https://vuldb.com/cve/CVE-2026-90690
• https://vuldb.com/submit/914892
• https://vuldb.com/vuln/403223
• https://vuldb.com/vuln/403223/cti

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