Medium [CVE-2026-73295] Material for MkDocs: DOM-based Cross-Site Scripting via crafted URL parameter
This medium-severity Red Hat Linux advisory covers CVE-2026-73295 affecting Red Hat Certification Program for Red Hat Enterprise Linux 9, Red Hat Developer Hub, Red Hat OpenShift Container Platform 4.
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Summary
Material for MkDocs is a powerful documentation framework built on top of MkDocs.
From 7.2.0 until 9.7.7, the mountSearchSuggest function in src/templates/assets/javascripts/components/search/suggest/index.ts contains a DOM-based cross-site scripting vulnerability in the optional search.suggest feature that allows a crafted q URL parameter to execute JavaScript in a documentation site's origin after user interaction.
This issue is fixed in version 9.7.7. A remote attacker could exploit this by crafting a malicious URL with a specially designed query parameter.
After user interaction, this could lead to the execution of arbitrary JavaScript code in the context of the documentation site, potentially resulting in information disclosure or other client-side attacks.
The vulnerability affects an optional search suggestion feature, which limits its immediate impact on typical Red Hat deployments where this feature may not be enabled by default. Red Hat severity: Moderate — CVSS 5.4 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N).
Weakness: CWE-79. Affected Red Hat products: Red Hat Certification Program for Red Hat Enterprise Linux 9; Red Hat Developer Hub; Red Hat OpenShift Container Platform 4; Self-service automation portal 2.
Red Hat lists Red Hat Hardened Images as not affected. Red Hat does not currently list a fixing RHSA for this CVE.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 29 days ago·verify at source
Mitigation checklist
- To mitigate this issue, disable the optional search.suggest feature in Material for MkDocs if it is not required for your deployment. Consult the Material for MkDocs documentation for specific configuration instructions on how to disable this feature. Disabling this feature may impact the search functionality of your documentation site.
Official advisory · high-confidence parse· fetched 29 days ago·verify at source
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