Exposure of Resource to Wrong Sphere in Linux kernel - CVE-2026-97419
Published: September 25, 2026
Vulnerability identifier: #VU152052
CSH Severity: Low
CVSS v4: 4.6 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-97419
CWE-ID: CWE-668
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local privileged user to disclose sensitive information.
The vulnerability exists due to improper network namespace isolation in HSR generic netlink notification handling when broadcasting ring error and node down events. A local privileged user can listen for notifications from HSR devices in other network namespaces in init_net to disclose sensitive information.
The notifications expose the peer node MAC address and slave port interface index.
Affected software
Linux kernel
How to mitigate CVE-2026-97419
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3