PT-2026-43922 · Linux Foundation+1 · Apparmor+1

CVE-2026-46055 · Published 2026-05-27 · Updated 2026-06-04

Positive Technologies (AI Summary)

CVSS v3.1

7.1

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 7.0.11-1.1

Description A string buffer overrun occurs in the AppArmor module due to missing termination. This issue manifests as a slab-out-of-bounds read within the aa dfa match() function, specifically when processing mount paths. The flaw is triggered during operations involving aa bind mount() and apparmor sb mount(), leading to memory access beyond the allocated buffer boundaries.

Recommendations Update to version 7.0.11-1.1 or newer.

Exploit

Fix

Related Identifiers

CVE-2026-46055

OPENSUSE-SU-2026:10954-1

Affected Products

Apparmor

Linux Kernel

References · 287

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46055.json · Exploit
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-46055 · Vendor Advisory
• https://git.kernel.org/stable/c/828bf7929bedcb79b560b5b4e44f22abee07d31b · Patch
• https://cve.org/CVERecord?id=CVE-2026-46055 · Security Note
• https://osv.dev/vulnerability/openSUSE-SU-2026:10954-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-46055 · Security Note
• https://osv.dev/vulnerability/CVE-2026-46055 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-46055 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-46055 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-46055 · Vendor Advisory
• https://git.kernel.org/stable/c/4b877ef27adc8ec187b0418629169856e7264e01 · Patch
• https://suse.com/security/cve/CVE-2026-46166 · Note
• https://suse.com/security/cve/CVE-2026-45996 · Note
• https://suse.com/security/cve/CVE-2026-46005 · Note
• https://suse.com/security/cve/CVE-2026-46128 · Note