CVE-2026-90819mediumCWE-113CWE-93

CVE-2026-90819: fallo de gravedad media en a2aproject a2a-java

a2aproject a2a-java Authorization Header Construction BasePushNotificationSender.java BasePushNotificationSender.dispatchNotification response splitting

Publicada el · Actualizada el

Seguir esta CVE+ Monitorear a2a-java

Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.

13Vexday Risk Score

Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.

ssvc Trackcvss 6.9epss 0.7%
A weakness has been identified in a2aproject a2a-java 1.2.0. The affected element is the function BasePushNotificationSender.dispatchNotification of the file server-common/src/main/java/org/a2aproject/sdk/server/tasks/BasePushNotificationSender.java of the component Authorization Header Construction. This manipulation causes http response splitting. The attack can be initiated remotely. Upgrading to version 1.3.0 is sufficient to fix this issue. Patch name: 247a655043f145f6f8e3853724b6a543eaa02001. You should upgrade the affected component.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X
Productos afectados
a2aproject · a2a-java
CVEs relacionadas — a2aproject a2a-java

En el mismo producto, de las más peligrosas a las menos.

CVE-2026-111765HIGHA2A Java SDK: Android synchronous POST forwards credentials across authorities after incomplete redirect fixEPSS 0.8%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%CVE-2026-116479MEDIUMa2aproject a2a-java JSON-RPC Error getMessage information exposureEPSS 0.3%