{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-90556 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-90556 is a high-severity memory corruption vulnerability in freeciv, published on 12 Sep 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-90556 and fix it if it is affected.\n\nWhat it is: CVE-2026-90556 is a high-severity memory corruption vulnerability in freeciv, published on 12 Sep 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-90556 in the wild and no public exploit code.\n\nAffected product: freeciv. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2026-90556/ (Markdown: https://insights.sbomify.com/CVE-2026-90556/index.md)","id":"CVE-2026-90556","markdown":"https://insights.sbomify.com/CVE-2026-90556/index.md","name":"CVE-2026-90556","record":{"aliases":["DEBIAN-CVE-2026-90556","GHSA-2p7g-gcvc-7p6m","UBUNTU-CVE-2026-90556"],"analysis":{"component_type":"desktop_application","fix_type":"upgrade","impacts":["code_execution","denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Freeciv game client","requires_auth":"none","summary":"Attackers can execute arbitrary code or cause denial of service by tricking users into loading malicious savegame files in Freeciv.","user_interaction":"required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":8.5,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-122","name":"Heap-based Buffer Overflow"}],"description":"Freeciv versions before 3.2.6 contain a heap buffer overflow in worklist_load() when processing savegame files with declared worklist lengths exceeding the fixed array bound of 64 elements. Attackers can craft malicious savegame files that write past the entries array into adjacent heap-allocated struct fields, potentially corrupting memory when a user or server operator loads the file.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Freeciv before 3.2.6 Heap Buffer Overflow via worklist_load","id":"CVE-2026-90556","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":7,"next":{"headline":"Freeciv 3.1.0 through 3.2.5 Out-of-Bounds Read via Savegame","id":"CVE-2026-90557"},"packages":[],"prev":{"headline":"vLLM before 0.28.0 Denial of Service via Audio Header","id":"CVE-2026-90555"},"products":["freeciv"],"published":"2026-09-12","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-09-18","vendors":["freeciv"]},"summary":"Attackers can execute arbitrary code or cause denial of service by tricking users into loading malicious savegame files in Freeciv.","url":"https://insights.sbomify.com/CVE-2026-90556/"}