CVE-2026-116479 Details
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.
A vulnerability allowing information exposure through error messages has been identified in the a2aproject a2a-java library, in versions prior to 1.2.0.Final. The issue arises in the JSON-RPC Error Handler component, specifically within the getMessage function. This vulnerability can be exploited remotely by manipulating error messages to disclose sensitive information.
Users are advised to upgrade to a version through 1.3.0.Final, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 26, 2026CISA-ADP
Assessed Oct 27, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/a2aproject/a2a-java/ | [email protected] | ProductVendor |
| https://github.com/a2aproject/a2a-java/commit/bbee3369f3825d0fba2373d821f6dc6d4fc82ec0 | [email protected] | Source CodeVendor |
| https://github.com/a2aproject/a2a-java/pull/1046 | [email protected] | Issue TrackingVendor |
| https://github.com/a2aproject/a2a-java/releases/tag/v1.3.0.Final | [email protected] | Release NotesVendor |
| https://vuldb.com/cve/CVE-2026-116479 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/submit/1014889 | [email protected] | Issue TrackingPermission Required |
| https://vuldb.com/vuln/426392 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/vuln/426392/cti | [email protected] | Content Wall |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-200 | Exposure of Sensitive Information to an Unauthorized Actor | [email protected] |
| CWE-209 | Generation of Error Message Containing Sensitive Information | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| a2aproject a2a-java | <= 1.2.0.Final |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 27, 2026 | CVE Modified | CISA-ADP |
| Oct 26, 2026 | New CVE Received | [email protected] |