---
id: CVE-2026-81560
title: A vulnerability was identified in blackms aistack up to 1.6.1
summary: >-
  A vulnerability was identified in blackms aistack up to 1.6.1. Affected by
  this issue is some unknown functionality of the file src/web/server.ts of the
  component Static File Handler. Such manipulation of the argument req.url leads
  to pa…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'
cwe:
  - CWE-22
published: '2026-08-27'
updated: '2026-08-29'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-81560'
references:
  - url: 'https://github.com/blackms/aistack/'
    label: cna@vuldb.com
  - url: 'https://github.com/blackms/aistack/issues/57'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/cve/CVE-2026-81560'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/887140'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/396057'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/396057/cti'
    label: cna@vuldb.com
tags:
  - nvd
epss: 0.0069
epssPercentile: 0.50759
ingestedAt: '2026-08-29T21:42:35.077Z'
---

## Overview

A vulnerability was identified in blackms aistack up to 1.6.1. Affected by this issue is some unknown functionality of the file src/web/server.ts of the component Static File Handler. Such manipulation of the argument req.url leads to path traversal. The attack can be executed remotely. The exploit is publicly available and might be used. The project was informed of the problem early through an issue report but has not responded yet.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.