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CVE-2026-117506— a2aproject a2a-java Push Notification Config Store JpaDatabasePushNotificationConfigStore.java InMemoryPushNotificationConfigStore.setInfo resource consumption

Quick assessment

Affected

a2aproject a2a-java

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 a2aproject 的 a2a-java 组件（版本 1.2.0.Final 及更早版本）中发现一个安全弱点。该问题影响 Push Notification Config Store 组件中文件内的方法。攻击者可通过远程执行恶意操作，导致资源被过度消耗。升级到版本 1.3.0.Final 可缓解此问题，相关修复补丁的提交哈希为。建议尽快升级受影响的组件。

CVSS 4.3 · Medium Updated Oct 27, 2026

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

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Vulnerability Information

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Vulnerability Title

a2aproject a2a-java Push Notification Config Store JpaDatabasePushNotificationConfigStore.java InMemoryPushNotificationConfigStore.setInfo resource consumption

Source: CVE Program / CVE List V5

Vulnerability 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.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Source: CVE Program / CVE List V5

Vulnerability Type

未加控制的资源消耗(资源穷尽)

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
a2aproject	a2a-java	1.2.0.Final	`cpe:2.3:a:a2aproject:a2a-java::::::::`

II. Public POCs for CVE-2026-117506

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2026-117506

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Vendor Pages for CVE-2026-117506 (2)

Other References for CVE-2026-117506 (6)

https://github.com/a2aproject/a2a-java/commit/b478810a03b4a16841d36aca5c6e87d8f48fce67 patch
https://github.com/a2aproject/a2a-java/pull/1044 issue-tracking patch
https://vuldb.com/cve/CVE-2026-117506 third-party-advisory
https://vuldb.com/vuln/427073/cti signature permissions-required
https://vuldb.com/submit/1015055 third-party-advisory
https://vuldb.com/vuln/427073 vdb-entry technical-description

https://www.cve.org/CVERecord?id=CVE-2026-117506

Same Patch Batch · a2aproject · 2026-10-27 · 5 CVEs total

CVE-2026-117507	5.4 MEDIUM	a2aproject a2a-java TaskManager.saveTaskEvent race condition
CVE-2026-117503	5.3 MEDIUM	a2aproject a2a-go REST SSE handler rest.go resource consumption
CVE-2026-117504	5.3 MEDIUM	a2aproject a2a-go Distributed Manager distributed_manager.go Cancel denial of service
CVE-2026-117505	4.3 MEDIUM	a2aproject a2a-java ChildQueue queue.offer resource consumption

IV. Related Vulnerabilities

Same product: a2a-java

Same vendor: a2aproject

Same weakness: CWE-400