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OpenAdvisories
High · 7.5 CVE-2026-107839 EUVD-2026-95934GHSA-4jfq-pmq9-257hGO-2026-6716

ageLANServer: Unbounded JSON Array Allocation in AoE3 Cloud `getFileURL` Endpoint Leads to Remote Denial of Service

Published Oct 9, 2026 · Updated Oct 14, 2026 · Assigned by GitHub_M

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 products

VendorProductAffectedFixed
luskaner ageLANServer < 1.15.2 —

Affected packages

EcosystemPackageAffectedFixedRecord
Go github.com/luskaner/ageLANServer/server < 1.8.2-0.20260809203301-1dd40166a593 1.8.2-0.20260809203301-1dd40166a593 GHSA-4jfq-pmq9-257h

References