Low 3.3Published May 28, 2026

CVE-2026-47329Incorrect validation of field size in Ubuntu Linux AppArmor notification responses

Updated under an hour ago (Oct 27, 2026, 5:23 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 SAUCE patches which fail to validate invalid sizes of the name field in AppAmor notification responses. The bug can be triggered by an unprivileged local user and could result in handling of crafted responses.

CVSS: 3.3 LOW (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Weakness (CWE): CWE-1284
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=9ea8b64b3ad27d0501cf711efa98077998a33b14	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.