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TI-2026-70119 Aliases CVE-2026-107839GHSA-4jfq-pmq9-257h

Unbounded allocation in ageLANServer lets remote users crash it

Priority HIGH 72CWE-400Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-400.

Summary

ageLANServer before 1.15.2 is affected in the AoE3 game server it bundles. The POST /game/cloud/getFileURL handler has no request body size limit and no cap on the attacker-controlled names array, and it allocates response storage from that array length (CWE-400). A remote unauthenticated client can use the default self-registration flow to send an oversized request, which exhausts memory, crashes or hangs the server, disconnects active players, and keeps the service down until it is restarted.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00415 36th percentileScored 2026-11-07
Fix Fixed ageLANServer (luskaner): 1.15.2github.com/luskaner/ageLANServer/server (Go): 1.8.2-0.20260809203301-1dd40166a593

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
luskanerageLANServerbefore 1.15.21.15.2Patch availableCNA
—github.com/luskaner/ageLANServer/server (Go)before 1.8.2-0.20260809203301-1dd40166a5931.8.2-0.20260809203301-1dd40166a593Patch availableGHSA-4jfq-pmq9-257h
  • ageLANServer Vendorluskaner Affected before 1.15.2 Fixed in 1.15.2 Patch available CNA
  • github.com/luskaner/ageLANServer/server (Go) Vendor— Affected before 1.8.2-0.20260809203301-1dd40166a593 Fixed in 1.8.2-0.20260809203301-1dd40166a593 Patch available GHSA-4jfq-pmq9-257h

Remediation

Upgrade ageLANServer to version 1.15.2, which fixes this issue. For the github.com/luskaner/ageLANServer/server Go module, use version 1.8.2-0.20260809203301-1dd40166a593, which is the fixed version.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

  • Fix · CNA ageLANServer (luskaner) Fixed in 1.15.2
  • Fix · GHSA-4jfq-pmq9-257h github.com/luskaner/ageLANServer/server (Go) Fixed in 1.8.2-0.20260809203301-1dd40166a593 Advisory →

Timeline

  1. 2026-10-10 Threatist record created from CVE-2026-107839
  2. 2026-10-10 Alias added: GHSA-4jfq-pmq9-257h
  3. 2026-10-10 Fix available: Go/github.com/luskaner/ageLANServer/[email protected] · GHSA-4jfq-pmq9-257h
  4. 2026-10-10 CVSS score added · GHSA-4jfq-pmq9-257h
  5. 2026-10-10 Weakness changed · GHSA-4jfq-pmq9-257h
  6. 2026-10-10 5 new references · GHSA-4jfq-pmq9-257h
  7. 2026-10-11 Priority changed: MEDIUM → LOW
  8. 2026-10-14 CISA SSVC decision points changed
  9. 2026-10-14 Priority changed: LOW → HIGH

References

Advisory 1

Other 4

Sources

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