XSS in Amundsen-Io Amundsen-Frontend

CVE-2026-90772

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.

Vulnerability class: XSS (Cross-Site Scripting)

CVSS v3 metric

CVSS v3 base score 7.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-90772?
CVE-2026-90772 is a high-severity vulnerability in Amundsen-Io Amundsen-Frontend, classified under Cross-site Scripting. CVSS score: 7.6/10. Published 2026-09-13.
How severe is CVE-2026-90772?
High severity. CVSS v3 base score is 7.6 out of 10.