{"id":"AZL-91581","summary":"CVE-2026-13595 affecting package util-linux for versions less than 2.40.2-5","details":"A flaw was found in the libblkid library of util-linux. During nested partition probing, the BSD, Minix, Solaris x86, and UnixWare partition probers cache a raw pointer to a parent partition entry in a dynamically allocated array. When subsequent partition additions cause the array to be reallocated, this pointer becomes stale, leading to a heap use-after-free read. An attacker who can present a crafted block device image (for example, via USB insertion or a loop-mounted disk image) can trigger this flaw without user interaction, as libblkid is invoked automatically by udev/udisks as root on block-device hot-plug events. This could lead to limited information disclosure or denial of service.","modified":"2026-08-30T05:26:50Z","published":"2026-06-29T09:16:28Z","upstream":["CVE-2026-13595"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-13595"}],"affected":[{"package":{"name":"util-linux","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/util-linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.40.2-5"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-91581.json"}}],"schema_version":"1.9.0"}