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TI-2026-08792 Aliases CVE-2026-10032GHSA-72qq-p3r5-f7wq

Arbitrary JavaScript Execution via openUrl in @a2ui/web_core

Priority LOW 28CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Cross-site scripting
Confidentiality · integrity · availability
High · High · Low
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-79.

Summary

The openUrl function in @a2ui/web_core passes an agent-controlled URL directly to window.open() without validating the URI scheme. A malicious agent can supply a javascript: URI as the url argument of a Button component's functionCall action. When the user clicks the rendered button, arbitrary JavaScript executes in the victim application's browser origin, constituting a stored/reflected XSS with Critical severity. No non-default configuration is required; the Basic Catalog is enabled by default.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00125 2nd percentileScored 2026-11-07
Fix Fixed @a2ui/web_core (npm): 0.10.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Google@a2ui/web_core0.9.0; 0.9.1-alpha.0; 0.9.1-alpha.1; 0.9.1-alpha.2; 0.9.1-alpha.3; 0.9.1-alpha.4; 0.9.1-alpha.5; 0.9.1; 0.9.2; 0.10.0; 0.10.1—No fix listedCNA
—@a2ui/web_core (npm)0.9.0 to before 0.10.20.10.2Patch availableGHSA-72qq-p3r5-f7wq
  • @a2ui/web_core VendorGoogle Affected 0.9.0; 0.9.1-alpha.0; 0.9.1-alpha.1; 0.9.1-alpha.2; 0.9.1-alpha.3; 0.9.1-alpha.4; 0.9.1-alpha.5; 0.9.1; 0.9.2; 0.10.0; 0.10.1 Fixed in — No fix listed CNA
  • @a2ui/web_core (npm) Vendor— Affected 0.9.0 to before 0.10.2 Fixed in 0.10.2 Patch available GHSA-72qq-p3r5-f7wq

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:google:a2ui\/web_core:*:*:*:*:*:node.js:*:*0.9.0 to before 0.10.2VulnerableGoogle
  • cpe:2.3:a:google:a2ui\/web_core:*:*:*:*:*:node.js:*:* Versions 0.9.0 to before 0.10.2 Vulnerable ·Google

Remediation

  • Fix · GHSA-72qq-p3r5-f7wq @a2ui/web_core (npm) Fixed in 0.10.2 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-10032
  2. 2026-10-03 Alias added: GHSA-72qq-p3r5-f7wq

References

Advisory 2

Other 3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences