{"id":"OSV-2026-582","summary":"Use-of-uninitialized-value in H5S_select_hyperslab","details":"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","modified":"2026-04-17T00:06:23.620035Z","published":"2026-04-17T00:06:23.619732Z","references":[{"type":"REPORT","url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=502905691"}],"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":"ec23a0328b0261bb11e1b7d394cd57b27fc517bb"},{"fixed":"6ee36c1c832c6b39f97e8740ceacc96690f2f9cb"}]}],"ecosystem_specific":{"severity":"MEDIUM"},"database_specific":{"source":"https://github.com/google/oss-fuzz-vulns/blob/main/vulns/matio/OSV-2026-582.yaml","introduced_range":"017180a9f75724c7fe90378362ab68beaa2426f2:65dca5fb5430340b065431b3568d01985b45c5ee","fixed_range":"922667d77051b57f9b855646d3ea98f507c59aa3:6ee36c1c832c6b39f97e8740ceacc96690f2f9cb"}}],"schema_version":"1.7.5"}