CVE-2026-90772

Stored XSS via unsanitized description rendering

Published Sep 13, 2026 · Updated Sep 13, 2026

Stored cross-site scripting in Amundsen Frontend 4.3.0 and earlier allows attackers to execute JavaScript via crafted descriptions. ResourceListItem components pass table, dashboard, and feature description strings from the metadata service or Elasticsearch directly to React's dangerouslySetInnerHTML without HTML sanitization. Execution requires an attacker to place markup in a description and a user to view affected search results; the script then runs in that user's browser under the frontend's origin.

CVSS severityUnavailable
Unscored
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Stored cross-site scripting in Amundsen Frontend 4.3.0 and earlier allows attackers to execute JavaScript via crafted descriptions. ResourceListItem components pass table, dashboard, and feature description strings from the metadata service or Elasticsearch directly to React's dangerouslySetInnerHTML without HTML sanitization. Execution requires an attacker to place markup in a description and a user to view affected search results; the script then runs in that user's browser under the frontend's origin.

The record

CVE
CVE-2026-90772
Published
Sep 13, 2026
Updated
Sep 13, 2026
Vendor
Amundsen
Product
Amundsen Frontend
Classifications
T1059.007
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Sep 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 13, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=4.3.0

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

Amundsen · Amundsen Frontendversion=0 <=4.3.0

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1059.007Command and Scripting Interpreter: JavaScript

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo