{"id":"OSV-2026-611","summary":"Heap-buffer-overflow in ParseOpaqueMetadata","details":"OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=504617128\n\n```\nCrash type: Heap-buffer-overflow READ 4\nCrash state:\nParseOpaqueMetadata\nReadOpaqueInfo5\nMat_VarReadNextInfo5\n```\n","modified":"2026-04-22T20:18:26.977909Z","published":"2026-04-22T00:09:09.767586Z","references":[{"type":"REPORT","url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=504617128"}],"affected":[{"package":{"name":"matio","ecosystem":"OSS-Fuzz","purl":"pkg:generic/matio"},"ranges":[{"type":"GIT","repo":"https://github.com/tbeu/matio.git","events":[{"introduced":"a0210352e032d2fd78a8b228bb602db4bf78e897"},{"fixed":"070cd4b945e775f32cc4f090eb1808a78152b6b2"}]}],"ecosystem_specific":{"severity":"MEDIUM"},"database_specific":{"introduced_range":"017180a9f75724c7fe90378362ab68beaa2426f2:65dca5fb5430340b065431b3568d01985b45c5ee","source":"https://github.com/google/oss-fuzz-vulns/blob/main/vulns/matio/OSV-2026-611.yaml"}}],"schema_version":"1.7.5"}