High severity7.3NVD Advisory· Published Sep 14, 2026
CVE-2026-90819
CVE-2026-90819
Description
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.
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Patches
Vulnerability mechanics
References
8- github.com/a2aproject/a2a-java/commit/247a655043f145f6f8e3853724b6a543eaa02001nvd
- github.com/a2aproject/a2a-java/pull/1043nvd
- github.com/a2aproject/a2a-java/pull/1053nvd
- github.com/a2aproject/a2a-java/releases/tag/v1.3.0.Finalnvd
- vuldb.com/cve/CVE-2026-90819nvd
- vuldb.com/submit/922996nvd
- vuldb.com/vuln/403322nvd
- vuldb.com/vuln/403322/ctinvd
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