---
title: "CVE-2026-90691: 0x4m4 HexStrike AI - Path Traversal"
description: "0x4m4 HexStrike AI up to d689933ff579d839c676c82b231f8e98326c5f04 contains a path traversal caused by manipulation of the \"filename\" argument in FileOperationsManager of hexstrike_server.py API Files Endpoint, letting remote attackers access arbitrary files, exploit requires no special privileges."
url: https://panop.io/threat-heartbeat/CVE-2026-90691/
---

# CVE-2026-90691 0x4m4 HexStrike AI - Path Traversal

0x4m4 HexStrike AI up to d689933ff579d839c676c82b231f8e98326c5f04 contains a path traversal caused by manipulation of the "filename" argument in FileOperationsManager of hexstrike\_server.py API Files Endpoint, letting remote attackers access arbitrary files, exploit requires no special privileges.

CVSS base score 8.3 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.62% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-90691)

## Details

Type

Path Traversal

Impact

File System Read, Information Disclosure

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L

Published

14 September 2026

Updated

15 October 2026

Weakness

[CWE-22](https://cwe.mitre.org/data/definitions/22.html)

## Vendor fix

Update to the latest version once a fix is available.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-90691](https://nvd.nist.gov/vuln/detail/CVE-2026-90691)
- [https://github.com/0x4m4/hexstrike-ai/issues/135](https://github.com/0x4m4/hexstrike-ai/issues/135)
- [https://github.com/0x4m4/hexstrike-ai/issues/225](https://github.com/0x4m4/hexstrike-ai/issues/225)
- [https://github.com/0x4m4/hexstrike-ai/pull/159](https://github.com/0x4m4/hexstrike-ai/pull/159)
- [https://vuldb.com/cve/CVE-2026-90691](https://vuldb.com/cve/CVE-2026-90691)
- [https://vuldb.com/submit/914893](https://vuldb.com/submit/914893)
- [https://vuldb.com/vuln/403224](https://vuldb.com/vuln/403224)
- [https://vuldb.com/vuln/403224/cti](https://vuldb.com/vuln/403224/cti)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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