{"id":"OSV-2026-595","aliases":[],"status":"published","title":"UNKNOWN WRITE in std::__1::istreambuf_iterator\u003cchar, std::__1::char_traits\u003cchar\u003e\u003e std::__1::num_g","description":"OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=504141064\n\n```\nCrash type: UNKNOWN WRITE\nCrash state:\nstd::__1::istreambuf_iterator\u003cchar, std::__1::char_traits\u003cchar\u003e\u003e std::__1::num_g\nstd::__1::basic_istream\u003cchar, std::__1::char_traits\u003cchar\u003e\u003e\u0026 std::__1::__input_ar\nigl::MshLoader::parse_element_field\n```","facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2026-04-20T00:05:53.121612Z","modified":"2026-04-20T00:05:53Z","affected":[{"source":"osv","ecosystem":"OSS-Fuzz","package":"libigl","ranges":[{"type":"GIT","events":[{"introduced":"96f5386b9a3ff8ad1c2f89b7b77a7db85d86b35b"},{"fixed":"83807ad36fa35a52d9f458d7202f0776d4ba882a"}]}],"versions":["v2.4.0","v2.5.0","v2.6.0"]}],"references":[{"url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=504141064","tags":["report"]}],"sources":{"osv":[{"id":"OSV-2026-595","title":"UNKNOWN WRITE in std::__1::istreambuf_iterator\u003cchar, std::__1::char_traits\u003cchar\u003e\u003e std::__1::num_g","description":"OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=504141064\n\n```\nCrash type: UNKNOWN WRITE\nCrash state:\nstd::__1::istreambuf_iterator\u003cchar, std::__1::char_traits\u003cchar\u003e\u003e std::__1::num_g\nstd::__1::basic_istream\u003cchar, std::__1::char_traits\u003cchar\u003e\u003e\u0026 std::__1::__input_ar\nigl::MshLoader::parse_element_field\n```\n","status":"published","published":"2026-04-20T00:05:53.121612Z","modified":"2026-04-20T00:05:53.121886Z","updated_at":"2026-11-02T15:52:50.263679Z"}]}}