CVE-2026-90772 Amundsen frontend - Stored XSS

Amundsen frontend through 4.3.0 contains a stored XSS caused by rendering descriptions with dangerouslySetInnerHTML without sanitization in ResourceListItem components, letting attackers inject malicious scripts via metadata or Elasticsearch, exploit requires attacker to inject malicious markup.

CVSS base score 7.6 /10
High
CISA KEV
Not listed
Public exploit
None known
EPSS
0.36% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Stored XSS
Impact
Stored XSS
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
Published
13 September 2026
Updated
15 October 2026
Weakness
CWE-79

Vendor fix

Update to the latest version with HTML sanitization in ResourceListItem components.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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