SEPTEMBER 17, 2026
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Case File

CVE-2026-90820

MEDIUM · CVSS 4.3 EPSS 0.23% Public Exploit

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

CyberRota Analysis

AI-Generated

A vulnerability in the AuthorizationRequestHandlerDecorator function of a2aproject a2a-java 1.2.0 allows for missing authorization, potentially enabling unauthorized remote access. Organizations using this Java component, particularly those relying on F5 products, should prioritize upgrading to version 1.3.0 to mitigate the risk associated with this medium-severity issue.

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-2026-90820
Severity
MEDIUM
CVSS
4.3
EPSS
0.23%
Java F5

Original NVD Description

A security vulnerability has been detected in a2aproject a2a-java 1.2.0. The impacted element is the function AuthorizationRequestHandlerDecorator.onListTasks of the file server-common/src/main/java/org/a2aproject/sdk/server/requesthandlers/AuthorizationRequestHandlerDecorator.java. Such manipulation leads to missing authorization. The attack can be launched remotely. Upgrading to version 1.3.0 is sufficient to resolve this issue. The name of the patch is e9a1abf9c90c02b16d17293afdc3cc2f555d63a6. The affected component should be upgraded.