CVE-2026-47332 MEDIUM

CVE-2026-47332: Out-of-bounds read in Ubuntu Linux AppArmor notification handling

Vendor Canonical
Product Ubuntu Linux
Weakness CWE-125
Published May 28, 2026
Last update May 28, 2026

CVSS base score

5.5/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity None

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

What the vulnerability does

01Description

Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly validate the size of an internal structure, leading to an out-of-bounds read in notification handling code. The bug can be triggered by an unprivileged local user and can result in information disclosure from adjacent slab objects.

Key dates

02Disclosure timeline

May 28, 2026 CVE published
May 28, 2026 Record updated