Amundsen Frontend through 4.3.0 Stored XSS via Description

Advisories

Amundsen Frontend through 4.3.0 Stored XSS via Description

severity: high
date: 9/13/2026
Affecting: amundsen-frontend <= 4.3.0
CVE: CVE-2026-90772
CWE: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSS: 8.3
CVSS V4 Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N
References: GitHub Issue #2362
https://github.com/amundsen-io/amundsen
https://github.com/amundsen-io/amundsen/blob/frontend-4.3.0/frontend/amundsen_application/static/js/components/ResourceListItem/TableListItem/index.tsx
Credit: George Chen
Description: Amundsen frontend through 4.3.0 renders table, dashboard, and feature descriptions with dangerouslySetInnerHTML without HTML sanitization in ResourceListItem components. Attackers can inject malicious markup like img elements with onerror handlers into descriptions via the metadata service or Elasticsearch, executing JavaScript in every user's browser that views search results.

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