CVE-2026-117505 PUBLISHED

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.

• colorfullbz (VulDB User) reporter

• VDB-427072 | a2aproject a2a-java ChildQueue queue.offer resource consumption
• VDB-427072 | CTI Indicators (IOB, IOC, TTP, IOA)
• CVE-2026-117505 | CVE Analysis and Report
• Submit #1015054 | a2aproject a2a-java ≤ 1.2.0.Final CWE-400
• https://github.com/a2aproject/a2a-java/pull/1040
• https://github.com/a2aproject/a2a-java/commit/be663f806efcfdddd2805d214fae4998379ac5f2
• https://github.com/a2aproject/a2a-java/releases/tag/v1.3.0.Final
• https://github.com/a2aproject/a2a-java/

• Resource Consumption CWE
• Denial of Service CWE