CVE-2026-117505: medium-severity vulnerability in a2aproject a2a-java
a2aproject a2a-java ChildQueue queue.offer resource consumption
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 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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/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-2026-117507MEDIUMa2aproject a2a-java TaskManager.saveTaskEvent race conditionEPSS 0.3%
References
https://github.com/a2aproject/a2a-java/https://github.com/a2aproject/a2a-java/commit/be663f806efcfdddd2805d214fae4998379ac5f2https://github.com/a2aproject/a2a-java/pull/1040https://github.com/a2aproject/a2a-java/releases/tag/v1.3.0.Finalhttps://vuldb.com/cve/CVE-2026-117505https://vuldb.com/submit/1015054https://vuldb.com/vuln/427072https://vuldb.com/vuln/427072/cti