{"id":"OSV-2026-650","aliases":[],"status":"published","title":"Use-of-uninitialized-value in Mat_int32Swap","description":"OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=506942183\n\n```\nCrash type: Use-of-uninitialized-value\nCrash state:\nMat_int32Swap\nReadCompressedInt32Data\nMat_VarRead5\n```","facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2026-04-29T00:19:17.230021Z","modified":"2026-04-29T14:32:22Z","affected":[{"source":"osv","ecosystem":"OSS-Fuzz","package":"matio","ranges":[{"type":"GIT","events":[{"introduced":"95ef616e596c15a72abed28ab0b3f6b72bd6e691"},{"fixed":"a3e837350f28232a3a16e901d989049b6866a0bc"},{"fixed":"2f89a7e9ebe198f16b62048dd02cd6de5dc47573"}]}],"versions":["v1.5.30"]}],"references":[{"url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=506942183","tags":["report"]}],"sources":{"osv":[{"id":"OSV-2026-650","title":"Use-of-uninitialized-value in Mat_int32Swap","description":"OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=506942183\n\n```\nCrash type: Use-of-uninitialized-value\nCrash state:\nMat_int32Swap\nReadCompressedInt32Data\nMat_VarRead5\n```\n","status":"published","published":"2026-04-29T00:19:17.230021Z","modified":"2026-04-29T14:32:22.076704Z","updated_at":"2026-11-02T15:52:50.263679Z"}]}}