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CVE-2026-43078

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: crypto: af_alg - Fix page reassignment overflow in af_alg_pull_tsgl When page reassignment was added to af_alg_pull_tsgl the or…

Published May 6, 2026CWE-787EPSS 0.18%

Overview

CVE-2026-43078 is a high-severity vulnerability. It was published on May 6, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. 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:

crypto: af_alg - Fix page reassignment overflow in af_alg_pull_tsgl

When page reassignment was added to af_alg_pull_tsgl the original

loop wasn't updated so it may try to reassign one more page than

necessary.

Add the check to the reassignment so that this does not happen.

Also update the comment which still refers to the obsolete offset

argument.

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/2b781d1d4f933990318bcc5c68fb75a717379e42Refgit.kernel.org/stable/c/31d00156e50ecad37f2cb6cbf04aaa9a260505efRefgit.kernel.org/stable/c/710a4ce5d7afd9fe082c75dec282ab4a11c0fe71Refgit.kernel.org/stable/c/9532501e0f1b200ea80baa0e33e0b06da10bb271Refgit.kernel.org/stable/c/c8369a6d62f5abde9cbd4b62c45bf4b996be2468Refgit.kernel.org/stable/c/dea5fcf085f977b6c2de1b2d4ec4767b6c840d1fRefgit.kernel.org/stable/c/f7826bc0b39928a4a22f6b815dd9940b22a63503Refgit.kernel.org/stable/c/fa48d3ea9cdbfb28c1fd6756c6c5cd01351aa51e

How CyberStrike helps

Frequently asked questions

What is CVE-2026-43078?

CVE-2026-43078 is a high-severity vulnerability. It was published on May 6, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-43078?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-43078?

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-2026-43078?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-43078 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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