CVE-2026-111555 Luksmeta: missing slot-range validation permits out-of-gap device i/o
An attacker with privileged access can corrupt encrypted storage by bypassing slot-range validation in luksmeta, causing persistent data loss.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-111555?
CVE-2026-111555 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, published on 16 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A flaw was found in luksmeta. Improper boundary validation of metadata slots allows an attacker capable of supplying or modifying a disk header to redirect wipe or load operations outside the intended metadata area. An attacker could exploit this vulnerability by providing a crafted header with valid checksums to overwrite or zero out encrypted payload data, resulting in persistent data loss and corrupted storage. Exploitation typically requires privileged access to modify raw block devices or the ability to induce an administrator to process an untrusted disk image.
Weakness: CWE-1285
Which versions are affected by CVE-2026-111555?
How do I fix CVE-2026-111555?
Apply the vendor's patch.
Is CVE-2026-111555 being exploited?
There is no known exploitation of CVE-2026-111555 in the wild and no public exploit code.
Sources
Also known as AZL-109739, DEBIAN-CVE-2026-111555, GHSA-jjpj-mrvg-445j, UBUNTU-CVE-2026-111555.