{"id":"CVE-2026-116479","title":"a2aproject a2a-java JSON-RPC Error getMessage information exposure","summary":"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 initiate…","severity":"medium","cvss":4.3,"cvssVector":"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","cvssSource":"cna","cwe":["CWE-209","CWE-200"],"vendor":"a2aproject","product":"a2a-java","affected":["a2a-java 1.2.0.Final"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-27T13:41:48.514393Z"},"published":"2026-10-26","updated":"2026-10-27","sourceUpdated":"2026-10-27T14:18:35.499Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-116479","references":[{"url":"https://vuldb.com/vuln/426392","label":"VDB-426392 | a2aproject a2a-java JSON-RPC Error getMessage information exposure"},{"url":"https://vuldb.com/vuln/426392/cti","label":"VDB-426392 | CTI Indicators (IOB, IOC, TTP, IOA)"},{"url":"https://vuldb.com/cve/CVE-2026-116479","label":"CVE-2026-116479 | CVE Analysis and Report"},{"url":"https://vuldb.com/submit/1014889","label":"Submit #1014889 | a2aproject a2a-java ≤ v1.2.0.Final CWE-209"},{"url":"https://github.com/a2aproject/a2a-java/pull/1046"},{"url":"https://github.com/a2aproject/a2a-java/commit/bbee3369f3825d0fba2373d821f6dc6d4fc82ec0"},{"url":"https://github.com/a2aproject/a2a-java/releases/tag/v1.3.0.Final"},{"url":"https://github.com/a2aproject/a2a-java/"}],"tags":["cve.org"],"epss":0.00315,"epssPercentile":0.24281,"ingestedAt":"2026-10-26T20:39:42.641Z","slug":"CVE-2026-116479","body":"## Overview\n\nA 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.\n\n## Affected\n\n- `a2a-java 1.2.0.Final`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":24,"depthScoreParts":{"impact":23.7,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}