CVE-2026-116479

MEDIUM 4.3

a2aproject a2a-java JSON-RPC Error getMessage information exposure

CVSS Score

4.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-209 CWE-200
Vendor	a2aproject
Product	a2a-java
Published	Oct 26, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:X/RL:O/RC:C

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

a2aproject / a2a-java

1.2.0.Final

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/426392 vuldb.com: https://vuldb.com/vuln/426392/cti vuldb.com: https://vuldb.com/cve/CVE-2026-116479 vuldb.com: https://vuldb.com/submit/1014889 github.com: https://github.com/a2aproject/a2a-java/pull/1046 github.com: https://github.com/a2aproject/a2a-java/commit/bbee3369f3825d0fba2373d821f6dc6d4fc82ec0 github.com: https://github.com/a2aproject/a2a-java/releases/tag/v1.3.0.Final github.com: https://github.com/a2aproject/a2a-java/

Credits

🔍 colorfullbz (VulDB User)