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CVE-2026-46026

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: net: qrtr: ns: Limit the maximum number of lookups Current code does no bound checking on the number of lookups a client can pe…

Published May 27, 2026EPSS 0.13%

Overview

CVE-2026-46026 is a medium-severity vulnerability. It was published on May 27, 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:

net: qrtr: ns: Limit the maximum number of lookups

Current code does no bound checking on the number of lookups a client can

perform. Though the code restricts the lookups to local clients, there is

still a possibility of a malicious local client sending a flood of

NEW_LOOKUP messages over the same socket.

Fix this issue by limiting the maximum number of lookups to 64 globally.

Since the nameserver allows only atmost one local observer, this global

lookup count will ensure that the lookups stay within the limit.

Note that, limit of 64 is chosen based on the current platform

requirements. If requirement changes in the future, this limit can be

increased.

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/0dbec101a7076e9b1e4bd1876f7cf07c56ff4ce3Refgit.kernel.org/stable/c/20855cef7e659ef84ac73251256fa530819b2346Refgit.kernel.org/stable/c/2b930bc77e00cb27e1d6e1d497b3b596283465efRefgit.kernel.org/stable/c/5640227d9a21c6a8be249a10677b832e7f40dc55Refgit.kernel.org/stable/c/6e3675251fcea06caecc61eb76462467558adfa6Refgit.kernel.org/stable/c/76adf8f69b0bb3ab20be7c58f5d555027332d113Refgit.kernel.org/stable/c/91cb30b6bb1880ba0748ca059bef50b8ac13793dRefgit.kernel.org/stable/c/bd69e0e8a7643ba5385f19f479e8e3da71f8d495

How CyberStrike helps

Frequently asked questions

What is CVE-2026-46026?

CVE-2026-46026 is a medium-severity vulnerability. It was published on May 27, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-46026?

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-2026-46026?

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-2026-46026?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-46026 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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