HCE2-SA-2026-0019 Important HCE 2.0 Security Fix(es): A Local Privilege Escalation (LPE) vulnerability was found in libblockdev. Generally, the "allow_active" setting in Polkit permits a physically present user to take certain actions based on the session type. Due to the way libblockdev interacts with the udisks daemon, an "allow_active" user on a system may be able escalate to full root privileges on the target host. Normally, udisks mounts user-provided filesystem images with security flags like nosuid and nodev to prevent privilege escalation. However, a local attacker can create a specially crafted XFS image containing a SUID-root shell, then trick udisks into resizing it. This mounts their malicious filesystem with root privileges, allowing them to execute their SUID-root shell and gain complete control of the system. (CVE-2025-6019) HCE 2.0 libblockdev-2.26-1.r3.hce2.x86_64.rpm libblockdev-devel-2.26-1.r3.hce2.x86_64.rpm libblockdev-tools-2.26-1.r3.hce2.x86_64.rpm python3-blockdev-2.26-1.r3.hce2.x86_64.rpm libblockdev-2.26-1.r3.hce2.aarch64.rpm libblockdev-devel-2.26-1.r3.hce2.aarch64.rpm libblockdev-tools-2.26-1.r3.hce2.aarch64.rpm python3-blockdev-2.26-1.r3.hce2.aarch64.rpm