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CVE-2026-102342

5.4 · MEDIUM

ammonia is a Rust library for repairing and securing untrusted HTML.

Published Oct 13, 2026CWE-79EPSS 0.27%

Overview

CVE-2026-102342 is a medium-severity vulnerability. It was published on October 13, 2026 and has a CVSS 3.1 base score of 5.4 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.4, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

ammonia is a Rust library for repairing and securing untrusted HTML. Prior to 3.3.3, 4.0.3, and 4.1.4, applications that allow the SVG animate or set elements can retain an animation whose attributeName targets href and whose value uses the javascript scheme. The sanitized SVG can therefore create a script-bearing link, and a user who clicks the link can execute attacker-controlled script in the application's origin, enabling stored cross-site scripting. This issue is fixed in versions 3.3.3, 4.0.3, and 4.1.4.

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/rust-ammonia/ammonia/commit/9394bd81179e756cb911314deabd943f1a9c8989GitHubgithub.com/rust-ammonia/ammonia/commit/9e3335e2dd8ab07346ff7997f20662a3da4023f6GitHubgithub.com/rust-ammonia/ammonia/commit/d2ae1547f478bd84d158bc5e57f5d31437dc4d8dGitHubgithub.com/rust-ammonia/ammonia/pull/250GitHubgithub.com/rust-ammonia/ammonia/pull/251GitHubgithub.com/rust-ammonia/ammonia/pull/252GitHubgithub.com/rust-ammonia/ammonia/releases/tag/v3.3.3GitHubgithub.com/rust-ammonia/ammonia/releases/tag/v4.0.3GitHubgithub.com/rust-ammonia/ammonia/releases/tag/v4.1.4GitHubgithub.com/rust-ammonia/ammonia/security/advisories/GHSA-m6mh-2hw2-555x

How CyberStrike helps

Frequently asked questions

What is CVE-2026-102342?

CVE-2026-102342 is a medium-severity vulnerability. It was published on October 13, 2026 and has a CVSS 3.1 base score of 5.4 (MEDIUM).

How severe is CVE-2026-102342?

This vulnerability has a CVSS 3.1 base score of 5.4, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-102342?

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-2026-102342?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-102342 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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