{"schema":"threatline.record/2","record":{"id":"CVE-2026-116477","aliases":[],"summary":"a2aproject a2a-dotnet Parser A2AJsonRpcProcessor.cs A2AJsonRpcProcessor.ProcessRequestAsync information exposure","details":"A security vulnerability has been detected in a2aproject a2a-dotnet up to 1.0.0-preview2. The impacted element is the function A2AJsonRpcProcessor.ProcessRequestAsync of the file src/A2A.AspNetCore/A2AJsonRpcProcessor.cs of the component Parser. The manipulation leads to information exposure through error message. It is possible to initiate the attack remotely. Upgrading to version 1.0.0-preview3 is sufficient to resolve this issue. The identifier of the patch is ccbd12b6108a6a8f0fd5d8b4a9ece3c8a94ba1e4. Upgrading the affected component is recommended.","categories":["Unclassified"],"product":"a2a-dotnet","vendor":"a2aproject","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-116477","source_modified_at":"2026-10-26T19:15:22.114Z","fetched_at":"2026-10-26T23:45:56.352924Z","product":"a2a-dotnet","vendor":"a2aproject","versions":[{"version":"1.0.0-preview2","status":"affected"},{"version":"1.0.0-preview3","status":"unaffected"}],"defaultStatus":null}],"fixed_versions":[],"cvss":5.3,"severity":"Medium","kev":{"listed":false},"epss":{"probability":null,"percentile":null,"score_date":null},"published_at":"2026-10-26T19:15:22.114Z","modified_at":"2026-10-26T19:15:22.114Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-116477","fetched_at":"2026-10-26T23:45:56.352924Z","source_modified_at":"2026-10-26T19:15:22.114Z"}],"sources":["CVE List"],"references":[{"source":"CVE List","url":"https://vuldb.com/vuln/426390","tags":["vdb-entry","technical-description"]},{"source":"CVE List","url":"https://vuldb.com/vuln/426390/cti","tags":["signature","permissions-required"]},{"source":"CVE List","url":"https://vuldb.com/cve/CVE-2026-116477","tags":["third-party-advisory"]},{"source":"CVE List","url":"https://vuldb.com/submit/1014890","tags":["third-party-advisory"]},{"source":"CVE List","url":"https://github.com/a2aproject/a2a-dotnet/pull/452","tags":["issue-tracking","patch"]},{"source":"CVE List","url":"https://github.com/a2aproject/a2a-dotnet/commit/ccbd12b6108a6a8f0fd5d8b4a9ece3c8a94ba1e4","tags":["patch"]},{"source":"CVE List","url":"https://github.com/a2aproject/a2a-dotnet/releases/tag/v1.0.0-preview3","tags":["patch"]},{"source":"CVE List","url":"https://github.com/a2aproject/a2a-dotnet/","tags":["product"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-26T19:15:22.114Z","content_hash":"cd20037dc9240ccd11fa6233635c04d42f26095f54950e6ef33726c463a45348"}}