CVE-2026-47326
MediumCVSS 5.5Exploitation Probability (EPSS)
Low risk3th percentile - higher than 3% of all known CVEs
Summary
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.
Risk Assessment
The memory leak could lead to resource exhaustion, potentially affecting system stability and availability.
Recommendation
It is recommended to update to the latest version of Ubuntu to mitigate this memory leak issue.
Other vulnerabilities in Ubuntu Linux 6.8, 6.17, 7.0
See all- CVE-2026-47334Medium
Ubuntu Linux 6.8, 6.17, and 7.0 contain AppArmor SAUCE patches which incorrectly sleep while holding a spinlock in notification handling code. The bug can be triggered by an unprivileged local user and can result in kernel panic or deadlock.
- CVE-2026-47333High
Ubuntu Linux 6.8, 6.17, and 7.0 contain AppArmor SAUCE patches that may incorrectly compute the size of an internal buffer, leading to a heap memory out-of-bounds read in notification handling code.
- CVE-2026-47332Medium
Ubuntu Linux 6.8, 6.17, and 7.0 contain AppArmor SAUCE patches that incorrectly validate the size of an internal structure, leading to an out-of-bounds read in notification handling code.
- CVE-2026-47328Medium
Ubuntu Linux 6.8, 6.17, and 7.0 contain AppArmor SAUCE patches that incorrectly attempt to free a pointer that was not previously kmalloc()d, leading to memory leaks. The bug can be triggered by an unprivileged local user.
- CVE-2026-47327Low
Ubuntu Linux 6.8, 6.17, and 7.0 contain SAUCE patches that may lead to a NULL pointer dereference in the handling of AppArmor notifications. The bug can be triggered by an unprivileged local user, potentially resulting in a kernel oops.
Original NVD description (English source)
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.