What is CVE-2026-46302?

CVE-2026-46302 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 2.6.37 onward and patched in 7.0.7 and 7.1. CVE-2026-46302 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-46302?

CVE-2026-46302 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2026-46302?

Yes, CVE-2026-46302 has been patched. Fixed versions include 7.0.7 and 7.1. If you are running Linux kernel 2.6.37 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-46302 actively exploited?

CVE-2026-46302 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-46302

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 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.

Package Linux Kernel

Published 2026-06-08

Last modified 2026-07-23

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected versions

Linux kernel versions 2.6.37 and later are affected. Fixed in 7.0.7, 7.1 and their respective stable series.

Affected from

≥ 2.6.37

Fixed in

✓ 7.0.7 7.0.x ✓ 7.1

References

2 total

Kernel Git
https://git.kernel.org/stable/c/714362f3779dfa453a78ced32396a72726962a41

Patch
Kernel Git
https://git.kernel.org/stable/c/a02cd6805562305f936e807da83e253b719dd965

Patch

Details

CVE ID CVE-2026-46302

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2026-06-08

Modified 2026-07-23

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-46302?

CVE-2026-46302 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 2.6.37 onward and has been patched in 7.0.7 and 7.1. CVE-2026-46302 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-46302?

CVE-2026-46302 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2026-46302?

Yes. CVE-2026-46302 has been patched. Fixed versions include 7.0.7 and 7.1. If you are running Linux kernel 2.6.37 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-46302 actively exploited?

No. CVE-2026-46302 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.