CVE-2026-117507: a2aproject a2a-java TaskManager.saveTaskEvent race condition
A security vulnerability has been detected in a2aproject a2a-java up to 1.2.0.Final. This impacts the function TaskManager.saveTaskEvent. The manipulation leads to race condition. The attack may be initiated remotely. Upgrading to version 1.3.0.Final will fix this issue. The identifier of the patch is 6b8e1e085c35e970ef0048901cd25850e4791ec2. The affected component should be upgraded.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
a2aproject/a2a-javato a version that resolves this vulnerability.Fixed in 1.3.0.FinalPatch 6b8e1e085c35e970ef0048901cd25850e4791ec2
Event History
Frequently Asked Questions
Which versions need remediation?
a2aproject a2a-java versions up to and including 1.2.0.Final are affected. Upgrade the affected component to version 1.3.0.Final, which contains the fix.
Can this be exploited remotely, and what access is required?
The issue may be initiated remotely. The supplied severity vector indicates that an attacker requires low privileges and no user interaction.
What is the security impact of a successful exploit?
The provided severity vector indicates low integrity and availability impact, with no confidentiality impact.
How can I verify that the remediation includes the intended fix?
Verify that the deployed a2a-java version is 1.3.0.Final or later. The patch is identified as commit 6b8e1e085c35e970ef0048901cd25850e4791ec2.