CVE-2026-90772 Amundsen Frontend through 4.3.0 Stored XSS via Description
Attackers can inject malicious JavaScript into Amundsen frontend descriptions, executing code in users' browsers via stored XSS.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-90772?
CVE-2026-90772 is a high-severity cross-site scripting vulnerability in amundsen-io amundsen-frontend, published on 13 Sep 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-79
Which versions are affected by CVE-2026-90772?
How do I fix CVE-2026-90772?
No fix has been published for CVE-2026-90772 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-90772 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-90772 exists.
Sources
Also known as GHSA-pxc2-2wvq-r8jw.