Vulnerability · Published Oct 27, 2026 · Assigned by VulDB
CVE-2026-117506a2aproject a2a-java Push Notification Config Store JpaDatabasePushNotificationConfigStore.java InMemoryPushNotificationConfigStore.setInfo resource consumption
Medium 4.3
In plain English
A medium-severity uncontrolled resource consumption in a2a-java from a2aproject. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 24% of all known vulnerabilities).
Official description
A weakness has been identified in a2aproject a2a-java up to 1.2.0.Final. This affects the function InMemoryPushNotificationConfigStore.setInfo of the file extras/push-notification-config-store-database-jpa/src/main/java/org/a2aproject/sdk/extras/pushnotificationconfigstore/database/jpa/JpaDatabasePushNotificationConfigStore.java of the component Push Notification Config Store. Executing a manipulation can lead to resource consumption. The attack can be launched remotely. Upgrading to version 1.3.0.Final mitigates this issue. This patch is called b478810a03b4a16841d36aca5c6e87d8f48fce67. You should upgrade the affected component.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| a2aproject | a2a-java | 1.2.0.Final |
Weakness: CWE-400, CWE-404 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C
References
- VDB-427073 | a2aproject a2a-java Push Notification Config Store JpaDatabasePushNotificationConfigStore.java InMemoryPushNotificationConfigStore.setInfo resource consumption vdb-entry, technical-description
- VDB-427073 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
- CVE-2026-117506 | CVE Analysis and Report third-party-advisory
- Submit #1015055 | a2aproject a2a-java ≤ 1.2.0.Final CWE-400 third-party-advisory
- https://github.com/a2aproject/a2a-java/pull/1044 issue-tracking, patch
- https://github.com/a2aproject/a2a-java/commit/b478810a03b4a16841d36aca5c6e87d8f48fce67 patch
- https://github.com/a2aproject/a2a-java/releases/tag/v1.3.0.Final patch
- https://github.com/a2aproject/a2a-java/ product