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NVD description
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.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
AVAILABLE
Momentum
NONE
If you run products in this scope, you should treat this CVE as relevant to your environment.
5 versions affected across 4 products
CVE-2026-13595 Heap Use-After-Free in libblkid Nested Partition Probing via Crafted Block Device https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-13595
Post summary
CVE-2026-13595 is a heap use‑after‑free vulnerability in libblkid triggered during nested partition probing with crafted block devices; the provided text contains no PoC, exploit code, active exploitation claims, or patch information.
7 of 7 entries
| Part | Vendor | Product | Version | Target SW | Target HW |
|---|---|---|---|---|---|
| App | kernel | util-linux | - | - | - |
| OS | redhat | enterprise_linux | 10.0 | - | - |
| OS | redhat | enterprise_linux | 7.0 | - | - |
| OS | redhat | enterprise_linux | 8.0 | - | - |
| OS | redhat | enterprise_linux | 9.0 | - | - |
| App | redhat | hardened_images | - | - | - |
| App | redhat | openshift_container_platform | - | - | - |