CVE-2026-47330
Analyzed Analyzed - Analysis Complete
AppArmor Notification Handling Uninitialized Variable in Ubuntu Linux

Publication date: 2026-05-28

Last updated on: 2026-06-09

Assigner: Canonical Ltd.

Description
Ubuntu Linux 6.8, 7.17 and 7.0 contain AppArmor SAUCE patches which can, under certain circumstances, use an uninitialized variable in notification handling code. The bug can be triggered by an unprivileged local user and can result in the incorrect caching of AppArmor notification responses.
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Meta Information
Published
2026-05-28
Last Modified
2026-06-09
Generated
2026-06-18
AI Q&A
2026-05-28
EPSS Evaluated
2026-06-16
NVD
CVE-2026-47330
EUVD
EUVD-2026-32985
Affected Vendors & Products
Showing 3 associated CPEs
Vendor Product Version / Range
canonical ubuntu_linux 24.04
canonical ubuntu_linux 25.10
canonical ubuntu_linux 26.04
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-457 The code uses a variable that has not been initialized, leading to unpredictable or unintended results.
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Executive Summary

This vulnerability exists in Ubuntu Linux versions 6.8, 7.17, and 7.0, specifically in the AppArmor SAUCE patches. Under certain conditions, an unprivileged local user can trigger a bug caused by the use of an uninitialized variable in the notification handling code. This can lead to incorrect caching of AppArmor notification responses.

Impact Analysis

The vulnerability allows an unprivileged local user to cause incorrect caching of AppArmor notification responses. While it does not directly impact confidentiality or availability, it can affect the integrity of the notification handling process within AppArmor, potentially leading to misleading or incorrect security notifications.

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