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CVE-2022-28366

7.5 · HIGH

Certain Neko-related HTML parsers allow a denial of service via crafted Processing Instruction (PI) input that causes excessive heap memory consumption.

Published Apr 21, 2022EPSS 2.17%

Overview

CVE-2022-28366 is a high-severity vulnerability. It was published on April 21, 2022 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Certain Neko-related HTML parsers allow a denial of service via crafted Processing Instruction (PI) input that causes excessive heap memory consumption. In particular, this issue exists in HtmlUnit-Neko through 2.26, and is fixed in 2.27. This issue also exists in CyberNeko HTML through 1.9.22 (also affecting OWASP AntiSamy before 1.6.6), but 1.9.22 is the last version of CyberNeko HTML. NOTE: this may be related to CVE-2022-24839.

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

GitHubgithub.com/nahsra/antisamy/releases/tag/v1.6.6Refsearch.maven.org/artifact/net.sourceforge.htmlunit/neko-htmlunitRefsourceforge.net/projects/htmlunit/files/htmlunit/2.27/GitHubgithub.com/nahsra/antisamy/releases/tag/v1.6.6Refsearch.maven.org/artifact/net.sourceforge.htmlunit/neko-htmlunitRefsourceforge.net/projects/htmlunit/files/htmlunit/2.27/

How CyberStrike helps

Frequently asked questions

What is CVE-2022-28366?

CVE-2022-28366 is a high-severity vulnerability. It was published on April 21, 2022 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2022-28366?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2022-28366?

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-2022-28366?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-28366 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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