CVE-2026-90772

Amundsen Frontend through 4.3.0 Stored XSS via Description

8.3 High

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: Passive

What an attacker can affect

Confidentiality: High
Integrity: Low
Availability: None

Exploit likelihood

0.36%Up 0.2 points since Sep 14, 2026

What each source reports

CVE List Score used8.3

Amundsen Frontend through 4.3.0 Stored XSS via Description

Record: CVE-2026-90772
CVSS 4.0: 8.3 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N
CVSS 3.1: 7.6 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

EUVDEUVD-2026-769938.3

Record: EUVD-2026-76993
CVSS 4.0: 8.3 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-pxc2-2wvq-r8jw8.3

Amundsen frontend through 4.3.0 renders table, dashboard, and feature descriptions with...

Record: GHSA-pxc2-2wvq-r8jw
CVSS 4.0: 8.3 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 7.6 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

NVD8.3

Record: CVE-2026-90772
CVSS 4.0: 8.3 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 7.6 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

OSV8.3

Amundsen Frontend through 4.3.0 Stored XSS via Description

Record: CVE-2026-90772
CVSS 4.0: 8.3 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N
Weakness: CWE-79
Updated: 2026-11-02

Affected products

amundsen-io amundsen-frontend

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-90772 is a high vulnerability (CVSS 8.3) in Amundsen-io Amundsen-frontend, published September 13, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.36%, the 30th percentile. No source names a fixed version.