{"id":"CVE-2026-111765","revision":null,"records":[{"revision":"5c0a1b7c1ccf4fb49a4079f621852f2d","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-111765","aliases":[],"title":"A2A Java SDK: Android synchronous POST forwards credentials across authorities after incomplete redirect fix","description":"A2A Java SDK is the official Java SDK for the Agent2Agent (A2A) Protocol. Starting in version 1.3.0.Final and prior to version 1.3.2.Final, the AndroidA2AHttpClient synchronous POST path overrides the disabled-redirect setting in AndroidA2AHttpClient.createConnection() with the PostBuilder default followRedirects value of true, leaving a residual of the earlier credential-redirect fix. JSONRPCTransport and RestTransport add interceptor-produced authentication headers and call synchronous post() without disabling redirects. AuthInterceptor permits X-API-Key, API-Key, X-Auth-Token, and X-Authentication headers; Android's repackaged OkHttp strips Authorization on cross-authority redirects but retains these nonstandard headers, disclosing a complete configured API key or token to another authority. The additional exposure applies when redirect or front-door behavior is compromised separately from the credential-handling component, or those components operate in different trust domains; a completely malicious initial origin already receives the credential on the first request. Autonomous clients require no human action, while user-invoked workflows can require interaction. Explicit followRedirects(false) prevents the redirected request. The demonstrated impact is credential disclosure, not subsequent credential use, integrity or availability impact, code execution, or host compromise. This issue is fixed in version 1.3.2.Final.","state":0,"publishedAt":"2026-10-20T15:10:51.321+00:00","modifiedAt":"2026-10-22T21:32:18.921+00:00","affected":[{"ecosystem":"Vendor product","name":"a2a-java","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"a2aproject\",\n                    \"product\": \"a2a-java\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 1.3.0.Final, < 1.3.2.Final\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","score":7.5,"severity":"HIGH"}],"references":["https://github.com/a2aproject/a2a-java/security/advisories/GHSA-4fpj-g9jf-9rgg","https://github.com/a2aproject/a2a-java/security/advisories/GHSA-9rhm-2h4x-jwmx","https://github.com/a2aproject/a2a-java/pull/1141","https://github.com/a2aproject/a2a-java/commit/2a36530d75e11bcf9b81f543464dbe193ca6478e","https://github.com/a2aproject/a2a-java/commit/3ae82912a106a6765d7b78042b0ef96e6c2e29b5","https://github.com/a2aproject/a2a-java/blob/30e31086e24bea096b5f662088661269c9119100/SECURITY.md#L335-L342","https://github.com/a2aproject/a2a-java/releases/tag/v1.3.2.Final"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-111765","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-111765","identifiers":["CVE-2026-111765"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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Not a global EPSS backfill.","generation":"2026-11-08T06:06:40.8743578+00:00","complete":true,"records":1096,"lastAttemptAt":"2026-11-08T06:06:40.8743578+00:00","lastSuccessAt":"2026-11-08T06:06:41.0246874+00:00","error":null,"lastVerifiedAt":"2026-11-08T06:06:41.0246876+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. 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