---
id: CVE-2026-107839
title: >-
  ageLANServer provides a cross-platform web server and launcher for offline
  multiplayer in several Age of Empires and Age of Mythology games
summary: >-
  ageLANServer provides a cross-platform web server and launcher for offline
  multiplayer in several Age of Empires and Age of Mythology games. Prior to
  version 1.15.2, the AoE3 POST /game/cloud/getFileURL handler in the bundled
  game server…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-400
published: '2026-10-09'
updated: '2026-10-09'
sourceUpdated: '2026-10-09T18:17:05.797'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-107839'
references:
  - url: >-
      https://github.com/luskaner/ageLANServer/commit/1dd40166a59356865c0a4b1800f32d05dc8bec79
    label: security-advisories@github.com
  - url: 'https://github.com/luskaner/ageLANServer/releases/tag/v1.15.2'
    label: security-advisories@github.com
  - url: >-
      https://github.com/luskaner/ageLANServer/security/advisories/GHSA-4jfq-pmq9-257h
    label: security-advisories@github.com
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-107839'
  - url: 'https://github.com/advisories/GHSA-4jfq-pmq9-257h'
tags:
  - nvd
  - ghsa
  - go
ingestedAt: '2026-10-09T19:09:33.756Z'
aliases:
  - GHSA-4jfq-pmq9-257h
ecosystem: go
vendor: luskaner
product: github.com/luskaner/ageLANServer/server
affected:
  - >-
    github.com/luskaner/ageLANServer/server <
    1.8.2-0.20260809203301-1dd40166a593
patched:
  - github.com/luskaner/ageLANServer/server 1.8.2-0.20260809203301-1dd40166a593
---

## Overview

ageLANServer provides a cross-platform web server and launcher for offline multiplayer in several Age of Empires and Age of Mythology games. Prior to version 1.15.2, the AoE3 POST /game/cloud/getFileURL handler in the bundled game server has no request body size limit or cap on the attacker-controlled JSON names array and allocates response storage directly from the unbounded array length. A remote unauthenticated client can use the default self-registration flow and send an oversized request that causes excessive memory allocation, crashes or hangs the server process, disconnects active players, and keeps the service unavailable until it is restarted. This issue is fixed in version 1.15.2.

## Remediation

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

## Package advisory (CVE-2026-107839)

Affected packages:

- `github.com/luskaner/ageLANServer/server < 1.8.2-0.20260809203301-1dd40166a593`

Patched in:

- `github.com/luskaner/ageLANServer/server 1.8.2-0.20260809203301-1dd40166a593`

Source: https://github.com/advisories/GHSA-4jfq-pmq9-257h