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CVE-2026-46302

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: selinux: allow multiple opens of /sys/fs/selinux/policy Currently there can only be a single open of /sys/fs/selinux/policy at…

Published Jun 8, 2026EPSS 0.10%

Overview

CVE-2026-46302 is a medium-severity vulnerability. It was published on June 8, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

selinux: allow multiple opens of /sys/fs/selinux/policy

Currently there can only be a single open of /sys/fs/selinux/policy at

any time. This allows any process to block any other process from

reading the kernel policy. The original motivation seems to have been

a mix of preventing an inconsistent view of the policy size and

preventing userspace from allocating kernel memory without bound, but

this is arguably equally bad. Eliminate the policy_opened flag and

shrink the critical section that the policy mutex is held. While we

are making changes here, drop a couple of extraneous BUG_ONs.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/714362f3779dfa453a78ced32396a72726962a41Refgit.kernel.org/stable/c/a02cd6805562305f936e807da83e253b719dd965

How CyberStrike helps

Frequently asked questions

What is CVE-2026-46302?

CVE-2026-46302 is a medium-severity vulnerability. It was published on June 8, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-46302?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-46302?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-46302?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-46302 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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