CVE-2026-117507: medium-severity vulnerability in a2aproject a2a-java
a2aproject a2a-java TaskManager.saveTaskEvent race condition
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.3epss 0.3%
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X
Affected products
a2aproject · a2a-javaRelated CVEs — a2aproject a2a-java
In the same product, most dangerous first.
CVE-2026-111765HIGHA2A Java SDK: Android synchronous POST forwards credentials across authorities after incomplete redirect fixEPSS 0.8%CVE-2026-90819MEDIUMa2aproject a2a-java Authorization Header Construction BasePushNotificationSender.java BasePushNotificationSender.dispatchNotification response splittingEPSS 0.7%CVE-2026-111764HIGHA2A Java SDK has a fail-open default task authorizationEPSS 0.6%CVE-2026-111761MEDIUMA2A Java SDK has Server-Side Request Forgery (SSRF) in push-notification deliveryEPSS 0.6%CVE-2026-90820MEDIUMa2aproject a2a-java AuthorizationRequestHandlerDecorator.java AuthorizationRequestHandlerDecorator.onListTasks authorizationEPSS 0.4%CVE-2026-116479MEDIUMa2aproject a2a-java JSON-RPC Error getMessage information exposureEPSS 0.3%
References
https://github.com/a2aproject/a2a-java/https://github.com/a2aproject/a2a-java/commit/6b8e1e085c35e970ef0048901cd25850e4791ec2https://github.com/a2aproject/a2a-java/pull/1045https://github.com/a2aproject/a2a-java/releases/tag/v1.3.0.Finalhttps://vuldb.com/cve/CVE-2026-117507https://vuldb.com/submit/1015060https://vuldb.com/vuln/427074https://vuldb.com/vuln/427074/cti