CVE-2026-92214 a2ui-project CVE debrief

Who should care

Defenders responsible for the a2ui-project a2ui up to version 0.10.7 should assess the potential impact of this vulnerability on their systems and prioritize verification and mitigation efforts.

Why it matters

A cross-site scripting vulnerability exists in the a2a-chat-canvas component of the a2ui-project a2ui up to version 0.10.7, allowing remote attackers to execute a manipulation that can lead to cross-site scripting. Defenders should prioritize verifying the presence of this vulnerability in their inventory and assessing the potential impact on their systems.

• Defenders need to verify the presence of this vulnerability in their inventory
• Defenders need to assess the potential impact of cross-site scripting on their systems
• Defenders may need to implement compensating controls to mitigate the vulnerability

Technical summary

The a2ui-project a2ui up to version 0.10.7 contains a cross-site scripting vulnerability in the a2a-chat-canvas component. The vulnerability is located in the sanitizer-markdown-renderer-service.ts file. This issue allows remote attackers to execute a manipulation that can lead to cross-site scripting. The vulnerability is confirmed to exist in the specified version, and defenders should prioritize verifying the presence of this vulnerability in their inventory and assessing the potential impact on their systems. The CVE record and NVD entry provide information about the vulnerability, but details about exploitation, victims, or business impact are not available.

Defensive priority

Defenders should prioritize verifying the presence of this vulnerability in their inventory and assessing the potential impact on their systems.

Recommended defensive actions

• Verify the presence of the a2ui-project a2ui up to version 0.10.7 in your inventory
• Assess the potential impact of the cross-site scripting vulnerability on your systems
• Consider implementing compensating controls to mitigate the vulnerability
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The CVE record and NVD entry provide information about the vulnerability, but details about exploitation, victims, or business impact are not available. The vulnerability is confirmed to exist in the a2ui-project a2ui up to version 0.10.7. Defenders should verify the presence of this vulnerability in their inventory and assess the potential impact on their systems. Evidence is limited to publicly available sources, and further verification is required to confirm affected scope and severity.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.