Critical Vulnerability in Linux Package: CVE-2026-46189
Summary
DEBIAN-CVE-2026-46189: ... Affects linux versions 5.10.103-1 – 7.1~rc5-1~exp1. No fix is published. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Habilume
Habit tracker with a companion that grows with you
Complete habits, earn Lume Points, and watch your Lume grow as you stay consistent.
Background
The Linux package is a core component of the Debian operating system, providing essential functionalities for system operations and hardware management. It serves as the kernel that facilitates communication between software and hardware, ensuring stability and performance. The package is widely used across various Debian distributions, including Bullseye, Bookworm, Trixie, and Forky. This vulnerability, identified as CVE-2026-46189, affects multiple versions of the Linux package, posing significant risks to system security.
Vulnerability Detail
CVE-2026-46189 is a critical vulnerability that allows unauthorized access and potential exploitation of the Linux kernel in Debian systems. The vulnerability originates from improper handling of certain system calls, which can lead to privilege escalation and unauthorized access to sensitive system resources. Attackers can exploit this vulnerability to execute arbitrary code with elevated privileges, compromising the integrity and confidentiality of the system. The affected versions include all releases prior to the fixed versions 6.12.88-1 for Debian Trixie and 7.0.7-1 for Debian Forky.
How To Fix
No fixed version is published for this vulnerability.
Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →
Workaround
As a temporary workaround, users can restrict access to the affected system or disable certain functionalities that rely on the vulnerable system calls until the package is updated. However, this is not a permanent solution and should be followed by an update as soon as possible.
Conclusion
CVE-2026-46189 represents a significant security risk for users of the Linux package across multiple Debian distributions. Immediate action is required to update to the patched versions to mitigate potential exploitation. Regular monitoring and updates are essential to maintain system security.
See every vulnerability recorded for linux →
FAQ
CVE-2026-46189 is a critical vulnerability in the Linux kernel affecting multiple Debian distributions, allowing unauthorized access and privilege escalation.
The vulnerability affects Debian 11 (Bullseye), Debian 12 (Bookworm), Debian 13 (Trixie), and Debian 14 (Forky) prior to the specified patched versions.
You can use the Vulert platform to monitor and alert for open-source vulnerabilities in your software. Visit Vulert Scanner to check if your application is affected by this vulnerability.
If immediate updates are not possible, consider restricting access to the affected system and disabling functionalities that rely on the vulnerable system calls as a temporary measure.
It is recommended to regularly check for vulnerabilities and updates, ideally on a weekly basis, to ensure your system remains secure.
References
Related vulnerabilities
Recent vulnerabilities recorded for linux.
Habilume
Habit tracker with a companion that grows with you
Complete habits, earn Lume Points, and watch your Lume grow as you stay consistent.
