CVE-2026-117505: a2aproject a2a-java ChildQueue queue.offer resource consumption
A security flaw has been discovered in a2aproject a2a-java up to 1.2.0.Final. The impacted element is the function queue.offer of the component ChildQueue. Performing a manipulation results in resource consumption. The attack can be initiated remotely. Upgrading to version 1.3.0.Final is sufficient to resolve this issue. The patch is named be663f806efcfdddd2805d214fae4998379ac5f2. It is advisable to upgrade the affected component.
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 be663f806efcfdddd2805d214fae4998379ac5f2
Event History
Frequently Asked Questions
Which deployments are affected?
Deployments using a2aproject a2a-java version 1.2.0.Final or earlier are affected. Version 1.3.0.Final resolves the issue.
What level of access does an attacker need?
The attack can be initiated remotely, but the severity vector indicates that low-level privileges are required. No user interaction is required.
What is the operational impact?
Manipulation of ChildQueue's queue.offer function can cause resource consumption, resulting in a low availability impact. The provided information does not indicate confidentiality or integrity impact.
What should be done if the component is in use?
Upgrade a2a-java to version 1.3.0.Final. The relevant patch is be663f806efcfdddd2805d214fae4998379ac5f2.