{"answers":{"affected":"1 open source package ship an affected version, including assimp.","exploited":"There is no known exploitation of OSV-2026-505 in the wild and no public exploit code.","fix":"No fix has been published for OSV-2026-505 yet. Limit exposure of the affected software until one is available.","what":"OSV-2026-505 is a memory corruption vulnerability in assimp, published on 2 Apr 2026."},"fix_prompt":"Check this codebase for OSV-2026-505 and fix it if it is affected.\n\nWhat it is: OSV-2026-505 is a memory corruption vulnerability in assimp, published on 2 Apr 2026. \nExploitation: There is no known exploitation of OSV-2026-505 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- assimp (OSS-Fuzz): affected all versions; no fix listed\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/OSV-2026-505/ (Markdown: https://insights.sbomify.com/OSV-2026-505/index.md)","id":"OSV-2026-505","markdown":"https://insights.sbomify.com/OSV-2026-505/index.md","name":"OSV-2026-505","record":{"aliases":[],"analysis":{"component_type":"library","fix_type":"no_fix_stated","impacts":["denial_of_service"],"network_reachable":"unknown","non_default_config":false,"product_category":"Assimp library","requires_auth":"none","summary":"A memory corruption vulnerability in the Assimp library allows attackers to cause a denial of service via crafted Blender files.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=498284131\n\n```\nCrash type: UNKNOWN READ\nCrash state:\nunsigned int Assimp::StreamReader\u003ctrue, true\u003e::Get\u003cunsigned int\u003e\nvoid Assimp::Blender::ConvertDispatcher\u003cint\u003e\nvoid Assimp::Blender::Structure::ReadField\u003c2, int\u003e\n```","ecosystems":["OSS-Fuzz"],"exploits":{"exploitdb":null,"first_seen":null,"github_poc":null,"max_poc_stars":null,"metasploit":null,"nuclei":null,"refs":[],"tier":null},"has_fix":false,"headline":"UNKNOWN READ in unsigned int Assimp::StreamReader\u003ctrue, true\u003e::Get\u003cunsigned int\u003e","id":"OSV-2026-505","indexable":true,"kev":null,"kind":"advisory","links":{"ecosystem":"OSS-Fuzz","product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":1,"n_references":null,"packages":[{"ecosystem":"OSS-Fuzz","fixed":[],"introduced":[],"last_affected":[],"package":"assimp","purl":"pkg:generic/assimp","source":"OSV-2026-505"}],"products":null,"published":"2026-04-02","related":[],"sources":[{"class":"attribution","licence":"CC BY 4.0","name":"OSS-Fuzz","prefix":"OSV"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":null,"updated":null,"vendors":null},"summary":"A memory corruption vulnerability in the Assimp library allows attackers to cause a denial of service via crafted Blender files.","url":"https://insights.sbomify.com/OSV-2026-505/"}