Cross-Site Scripting in a2ui Project's a2a-chat-canvas Component
CVE-2026-92214

5.1MEDIUM

Key Information:

Vendor

A2ui-project

Status
A2ui
Vendor
CVE Published:
16 September 2026

What is CVE-2026-92214?

A security flaw has been identified in the a2ui project's a2a-chat-canvas component, specifically within the sanitizer-markdown-renderer-service.ts file. This vulnerability may allow attackers to execute cross-site scripting attacks, potentially compromising user data and session integrity. It affects all versions of a2ui up to 0.10.7. Attackers can exploit this flaw to deliver malicious scripts via manipulated input, leading to severe security risks for end users.

Affected Version(s)

a2ui 0.10.0

a2ui 0.10.1

a2ui 0.10.2

References

https://vuldb.com/vuln/404459
vdb-entry
https://vuldb.com/vuln/404459/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-92214
third-party-advisory

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

colorfullbz (VulDB User)
.