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Database

Prototype Pollution In mermaid

Description

Prototype pollution vulnerability found in Mermaid's bundled version of DOMPurify The following bundled files within the Mermaid NPM package contain a bundled version of DOMPurify that is vulnerable to https://github.com/cure53/DOMPurify/security/advisories/GHSA-mmhx-hmjr-r674, potentially resulting in an XSS attack.

This affects the built:

    dist/mermaid.min.js

    dist/mermaid.js

    dist/mermaid.esm.mjs

    dist/mermaid.esm.min.mjs

This will also affect users that use the above files via a CDN link, e.g. https://cdn.jsdelivr.net/npm/[email protected]/dist/mermaid.min.js

Users that use the default NPM export of mermaid, e.g. import mermaid from 'mermaid', or the dist/mermaid.core.mjs file, do not use this bundled version of DOMPurify, and can easily update using their package manager with something like npm audit fix.

Patches

    develop branch: 6c785c93166c151d27d328ddf68a13d9d65adc00

    backport to v10: 92a07ffe40aab2769dd1c3431b4eb5beac282b34

Mitigation

Update Impact

Minimal update. May introduce new vulnerabilities or breaking changes.

Ecosystem
Component
Affected version
Patched versions

Aliases

1. GHSA-mmhx-hmjr-r6742. GHSA-m4gq-x24j-jpmf3. GCVE-GHSA-m4gq-x24j-jpmf

References

1. https://github.com/cure53/DOMPurify/security/advisories/GHSA-mmhx-hmjr-r6742. https://github.com/mermaid-js/mermaid/security/advisories/GHSA-m4gq-x24j-jpmf3. https://github.com/mermaid-js/mermaid/commit/6c785c93166c151d27d328ddf68a13d9d65adc004. https://github.com/mermaid-js/mermaid/commit/92a07ffe40aab2769dd1c3431b4eb5beac282b34

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