{"id":"AZL-112694","summary":"CVE-2026-122330 affecting package blosc 1.21.6-1","details":"Blosc c-blosc2 before 3.5.0 contains a divide-by-zero vulnerability in blosc2_schunk_get_slice_buffer() in blosc/schunk.c that allows attackers to crash applications by supplying crafted frames with unchecked zero chunksize or blocksize values. Attackers can provide a malicious Blosc2 frame opened via blosc2_schunk_open() or blosc2_schunk_from_buffer() and read as a slice, raising SIGFPE and terminating the process.","modified":"2026-11-06T14:17:03.906621336Z","published":"2026-11-05T16:17:46Z","upstream":["CVE-2026-122330"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-122330"}],"affected":[{"package":{"name":"blosc","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/blosc"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"1.21.6-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-112694.json"}}],"schema_version":"1.9.2"}