Medium 5.5Published May 28, 2026

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

Updated under an hour ago (Oct 26, 2026, 9:40 PM ET)

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It affects Canonical Ubuntu Linux. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Canonical Ubuntu Linux

Exploited in the last 30 days

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.

CVSS: 5.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE): CWE-125
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: canonical
NVD analysis: Analyzed
Record last updated: May 28, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Canonical Ubuntu Linux canonical:ubuntu_linux (from the name)	from 6.8.0 before 6.8.0-124.124; from 6.17.0 before 6.17.0-35.35; from 7.0.0 before 7.0.0-22.22	CNA record
canonical ubuntu_linux canonical:ubuntu_linux	24.04; 25.10; 26.04	NVD

References

References

https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/noble/commit/?id=0418e5f61b55465f19245705bce6590c807fc9f2	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.