{"id":"OSV-2026-582","aliases":[],"status":"published","title":"Use-of-uninitialized-value in H5S_select_hyperslab","description":"OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=502905691\n\n```\nCrash type: Use-of-uninitialized-value\nCrash state:\nH5S_select_hyperslab\nH5D__chunk_io_init\nH5D__read\n```","facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2026-04-17T00:06:23.619732Z","modified":"2026-04-17T00:06:23Z","affected":[{"source":"osv","ecosystem":"OSS-Fuzz","package":"matio","ranges":[{"type":"GIT","events":[{"introduced":"a0210352e032d2fd78a8b228bb602db4bf78e897"},{"fixed":"ec23a0328b0261bb11e1b7d394cd57b27fc517bb"},{"fixed":"6ee36c1c832c6b39f97e8740ceacc96690f2f9cb"}]}]}],"references":[{"url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=502905691","tags":["report"]}],"sources":{"osv":[{"id":"OSV-2026-582","title":"Use-of-uninitialized-value in H5S_select_hyperslab","description":"OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=502905691\n\n```\nCrash type: Use-of-uninitialized-value\nCrash state:\nH5S_select_hyperslab\nH5D__chunk_io_init\nH5D__read\n```\n","status":"published","published":"2026-04-17T00:06:23.619732Z","modified":"2026-04-17T00:06:23.620035Z","updated_at":"2026-11-02T15:52:50.263679Z"}]}}