SEPTEMBER 17, 2026
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Case File

CVE-2026-90819

HIGH · CVSS 7.3 EPSS 0.39% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-14 · Last synced 2026-09-17

CyberRota Analysis

AI-Generated

A vulnerability exists in the a2a-java library version 1.2.0, specifically in the BasePushNotificationSender.dispatchNotification function, which is susceptible to HTTP response splitting due to improper handling of the Authorization Header Construction. This flaw can be exploited remotely, potentially allowing attackers to manipulate HTTP responses and execute further attacks. Organizations using this library should prioritize upgrading to version 1.3.0 to mitigate the risk associated with this high-severity vulnerability.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-90819
Severity
HIGH
CVSS
7.3
EPSS
0.39%
Java

Original NVD 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.