CVE-2026-118128: a2aproject a2a-js Task Status Update result_manager.ts ResultManager.applyStatusUpdate race condition
A vulnerability has been found in a2aproject a2a-js up to 1.1.0. Impacted is the function ResultManager.applyStatusUpdate of the file src/server/resultmanager.ts of the component Task Status Update Handler. Such manipulation leads to race condition. The attack may be launched remotely. Upgrading to version 1.2.0 is recommended to address this issue. The name of the patch is 7b87c9480bfa643f9d2b2eaf06988b3d3a95de25. It is recommended to upgrade the affected component.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
a2aproject/a2a-jsto a version that resolves this vulnerability.Fixed in 1.2.0Patch 7b87c9480bfa643f9d2b2eaf06988b3d3a95de25
Event History
Frequently Asked Questions
Which versions are affected and what version fixes the issue?
a2aproject a2a-js versions up to and including 1.1.0 are affected. Upgrade to version 1.2.0, which includes patch 7b87c9480bfa643f9d2b2eaf06988b3d3a95de25.
Can this be exploited remotely without authentication or user interaction?
Yes. The supplied vector identifies network access, low attack complexity, no privileges required, and no user interaction.
What component should be prioritized during remediation?
Prioritize the Task Status Update Handler, specifically ResultManager.applyStatusUpdate in src/server/result_manager.ts. The reported impact is a race condition that can affect integrity and availability.