{"answers":{"affected":"3 open source packages ship an affected version, including github.com/luskaner/ageLANServer/server.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-107839 exists.","fix":"Upgrade github.com/luskaner/ageLANServer/server to 1.8.2-0.20260809203301-1dd40166a593 or later.","what":"CVE-2026-107839 is a high-severity denial of service vulnerability in luskaner ageLANServer, published on 9 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-107839 and fix it if it is affected.\n\nWhat it is: CVE-2026-107839 is a high-severity denial of service vulnerability in luskaner ageLANServer, published on 9 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-107839 exists.\n\nAffected packages and fixed versions:\n- github.com/luskaner/ageLANServer/server (Go): affected all versions; fixed in 1.8.2-0.20260809203301-1dd40166a593\n- github.com/luskaner/ageLANServer/server (Go): affected all versions; fixed in 1.8.2-0.20260809203301-1dd40166a593\n- github.com/luskaner/ageLANServer/server (Go): affected all versions; fixed in 1.8.2-0.20260809203301-1dd40166a593\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-107839/ (Markdown: https://insights.sbomify.com/CVE-2026-107839/index.md)","id":"CVE-2026-107839","markdown":"https://insights.sbomify.com/CVE-2026-107839/index.md","name":"CVE-2026-107839","record":{"aliases":["GHSA-4jfq-pmq9-257h","GO-2026-6716"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Game server software","requires_auth":"none","summary":"Remote unauthenticated attackers can crash the ageLANServer by sending oversized JSON requests to the getFileURL endpoint, causing service disruption.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"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.","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"ageLANServer: Unbounded JSON Array Allocation in AoE3 Cloud `getFileURL` Endpoint Leads to Remote Denial of Service","id":"CVE-2026-107839","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":3,"n_references":3,"next":{"headline":"yopass Prometheus metrics middleware allows remote memory exhaustion through unbounded method labels","id":"CVE-2026-107840"},"packages":[{"ecosystem":"Go","fixed":["1.8.2-0.20260809203301-1dd40166a593"],"introduced":["0"],"last_affected":[],"package":"github.com/luskaner/ageLANServer/server","purl":null,"source":"GHSA-4jfq-pmq9-257h"},{"ecosystem":"Go","fixed":["1.8.2-0.20260809203301-1dd40166a593"],"introduced":["0"],"last_affected":[],"package":"github.com/luskaner/ageLANServer/server","purl":"pkg:golang/github.com/luskaner/ageLANServer/server","source":"GHSA-4jfq-pmq9-257h"},{"ecosystem":"Go","fixed":["1.8.2-0.20260809203301-1dd40166a593"],"introduced":["0"],"last_affected":[],"package":"github.com/luskaner/ageLANServer/server","purl":"pkg:golang/github.com/luskaner/ageLANServer/server","source":"GO-2026-6716"}],"prev":{"headline":"RIOT: nanocoap_fileserver ignores response initialization failure, leading to reachable assertion","id":"CVE-2026-107838"},"products":["ageLANServer"],"published":"2026-10-09","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-14","vendors":["luskaner"]},"summary":"Remote unauthenticated attackers can crash the ageLANServer by sending oversized JSON requests to the getFileURL endpoint, causing service disruption.","url":"https://insights.sbomify.com/CVE-2026-107839/"}