CVE-2026-90819
High
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.
SeverityHigh
CVSS7.3
Exploit probability—
ProductA2aproject A2a-java
PublishedSep 14, 2026
First seenSep 14, 2026
Weakness typeCWE-113CWE-113CWE-93CWE-93
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| a2aproject a2a-java | 1.2.0 | — |
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