CVE-2026-47326CWE-401

Memory leak in Ubuntu Linux AppArmor large notification response allocation

Medium · published May 28, 2026

CVSS v3.1
5.5
EPSS
0%
Percentile
2.6
In the wild
Unconfirmed
What it is

Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a memory leak in the handling of big responses to AppArmor notifications. The bug can be triggered by an unprivileged local user. The memory leak could lead to resource exhaustion.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00134 · 2.6th percentile
Weakness
CWE-401 · Missing Release of Memory after Effective Lifetime
Published
2026-05-28T18:26Z
EPSS history
Timeline
  • 28 MAY 18:26Z
    Memory leak in Ubuntu Linux AppArmor large notification response allocation
    cvelistv5