Vulnerability · Published Oct 9, 2026 · Assigned by GitHub_M
CVE-2026-107839ageLANServer: Unbounded JSON Array Allocation in AoE3 Cloud `getFileURL` Endpoint Leads to Remote Denial of Service
High 7.5
In plain English
A high-severity uncontrolled resource consumption in ageLANServer from luskaner. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 36% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/luskaner/ageLANServer/server | 1.8.2-0.20260809203301-1dd40166a593 | GHSA-4jfq-pmq9-257h |
| Go | github.com/luskaner/ageLANServer/server | 1.8.2-0.20260809203301-1dd40166a593 | GO-2026-6716 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| luskaner | ageLANServer | < 1.15.2 |
Weakness: CWE-400 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H