CVE-2026-116479

Medium

Description

A flaw has been found in a2aproject a2a-java up to 1.2.0.Final. This impacts the function getMessage of the component JSON-RPC Error Handler. This manipulation causes information exposure through error message. The attack can be initiated remotely. Upgrading to version 1.3.0.Final will fix this issue. Patch name: bbee3369f3825d0fba2373d821f6dc6d4fc82ec0. Upgrading the affected component is advised.

SeverityMedium

CVSS4.3

Exploit probability—

ProductA2aproject A2a-java

PublishedOct 26, 2026

First seenOct 26, 2026

Weakness typeCWE-209CWE-209 CWE-200Sensitive information exposure

How to fix

Patches

github.com/a2aproject/a2a-java/pull/1046
github.com/a2aproject/a2a-java/commit/bbee3369f3825d0fba2373d821f6dc6d4fc82ec0
github.com/a2aproject/a2a-java/releases/tag/v1.3.0.Final

Affected products

Product	Affected versions	Fixed in
a2aproject a2a-java	1.2.0.Final	—

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