{"items":[{"id":"NVI-00011902","kind":"vulnerability","title":"A2A Java SDK send client credentials under server-controlled HTTP header name, enabling leakage via redirect","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-9rhm-2h4x-jwmx","CVE-2026-111763"],"plain_summary":"GitHub lists this reviewed advisory for org.a2aproject.sdk:a2a-java-sdk-parent. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-0a9a1f6328d9e95ae8d23305c57fb2a0"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-21T16:17:14.520Z","value":"5.7 MEDIUM (4.0)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-797ffc4f8b451794a5c0b4b421687bcf"},{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.141%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.03391. Missing scores are unknown.","source_id":"sr-0a9a1f6328d9e95ae8d23305c57fb2a0"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-5887c19f8ab3381b7bb28a0b7ad619e4","url":"https://github.com/advisories/GHSA-9rhm-2h4x-jwmx","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-9rhm-2h4x-jwmx","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T23:13:39.183Z"},{"id":"sr-797ffc4f8b451794a5c0b4b421687bcf","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-111763","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-111763","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-03T09:58:37.778Z"},{"id":"sr-0a9a1f6328d9e95ae8d23305c57fb2a0","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-111763","publisher":"FIRST EPSS","observed_at":"2026-11-01T01:39:43.066Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-5887c19f8ab3381b7bb28a0b7ad619e4"],"technology":"org.a2aproject.sdk:a2a-java-sdk-parent","known_exclusions":[],"conditions_summary":"*Impact.** A malicious or compromised A2A agent can cause the client's API key credential to be forwarded to an arbitrary third-party server. The agent serves an AgentCard with an `APIKeySecurityScheme` specifying a custom header name, then responds with an HTTP redirect. The JDK HttpClient follows the redirect and forwards the custom header containing the credential, since only the standard `Authorization` header may be stripped on cross-origin redirects.\n\n**Where.** `client/transport/spi/src/main/java/org/a2aproject/sdk/client/transport/spi/interceptors/auth/AuthInterceptor.java:69` in `intercept`\n\n**What.** The `apiKeySecurityScheme.name()` field from the remote agent's AgentCard (untrusted, server-controlled data) is used directly as the HTTP header name when placing client credentials. Combined with `JdkA2AHttpClient`'s `followRedirects(NORMAL)` policy, credentials under custom header names survive cross-origin redirects (only `Authorization` is stripped on newer JDKs), allowing a malicious agent to leak client credentials to third-party servers. Additionally, `AuthInterceptor` does not check that `location==HEADER` before placing the credential as a header.\n\n**Exploit scenari","public_affected_ranges":["< 1.3.0.Final"]}],"null_published_at":"2026-11-08T15:11:49.359Z","source_updated_at":"2026-10-20T21:04:17.000Z","source_disclosed_at":"2026-10-20T21:04:16.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T23:13:39.183Z"},{"id":"NVI-00011902","kind":"vulnerability","title":"A2A Java SDK send client credentials under server-controlled HTTP header name, enabling leakage via redirect","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-9rhm-2h4x-jwmx","CVE-2026-111763"],"plain_summary":"GitHub lists this reviewed advisory for org.a2aproject.sdk:a2a-java-sdk-parent. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-0a9a1f6328d9e95ae8d23305c57fb2a0"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.141%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.03391. Missing scores are unknown.","source_id":"sr-0a9a1f6328d9e95ae8d23305c57fb2a0"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-5887c19f8ab3381b7bb28a0b7ad619e4","url":"https://github.com/advisories/GHSA-9rhm-2h4x-jwmx","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-9rhm-2h4x-jwmx","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T23:13:39.183Z"},{"id":"sr-0a9a1f6328d9e95ae8d23305c57fb2a0","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-111763","publisher":"FIRST EPSS","observed_at":"2026-11-01T01:39:43.066Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-5887c19f8ab3381b7bb28a0b7ad619e4"],"technology":"org.a2aproject.sdk:a2a-java-sdk-parent","known_exclusions":[],"conditions_summary":"*Impact.** A malicious or compromised A2A agent can cause the client's API key credential to be forwarded to an arbitrary third-party server. The agent serves an AgentCard with an `APIKeySecurityScheme` specifying a custom header name, then responds with an HTTP redirect. The JDK HttpClient follows the redirect and forwards the custom header containing the credential, since only the standard `Authorization` header may be stripped on cross-origin redirects.\n\n**Where.** `client/transport/spi/src/main/java/org/a2aproject/sdk/client/transport/spi/interceptors/auth/AuthInterceptor.java:69` in `intercept`\n\n**What.** The `apiKeySecurityScheme.name()` field from the remote agent's AgentCard (untrusted, server-controlled data) is used directly as the HTTP header name when placing client credentials. Combined with `JdkA2AHttpClient`'s `followRedirects(NORMAL)` policy, credentials under custom header names survive cross-origin redirects (only `Authorization` is stripped on newer JDKs), allowing a malicious agent to leak client credentials to third-party servers. Additionally, `AuthInterceptor` does not check that `location==HEADER` before placing the credential as a header.\n\n**Exploit scenari","public_affected_ranges":["< 1.3.0.Final"]}],"null_published_at":"2026-11-01T14:34:14.095Z","source_updated_at":"2026-10-20T21:04:17.000Z","source_disclosed_at":"2026-10-20T21:04:16.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-10-31T23:13:39.183Z"},{"id":"NVI-00011902","kind":"vulnerability","title":"A2A Java SDK send client credentials under server-controlled HTTP header name, enabling leakage via redirect","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-9rhm-2h4x-jwmx","CVE-2026-111763"],"plain_summary":"GitHub lists this reviewed advisory for org.a2aproject.sdk:a2a-java-sdk-parent. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-5887c19f8ab3381b7bb28a0b7ad619e4"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-5887c19f8ab3381b7bb28a0b7ad619e4","url":"https://github.com/advisories/GHSA-9rhm-2h4x-jwmx","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-9rhm-2h4x-jwmx","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T23:13:39.183Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-5887c19f8ab3381b7bb28a0b7ad619e4"],"technology":"org.a2aproject.sdk:a2a-java-sdk-parent","known_exclusions":[],"conditions_summary":"*Impact.** A malicious or compromised A2A agent can cause the client's API key credential to be forwarded to an arbitrary third-party server. The agent serves an AgentCard with an `APIKeySecurityScheme` specifying a custom header name, then responds with an HTTP redirect. The JDK HttpClient follows the redirect and forwards the custom header containing the credential, since only the standard `Authorization` header may be stripped on cross-origin redirects.\n\n**Where.** `client/transport/spi/src/main/java/org/a2aproject/sdk/client/transport/spi/interceptors/auth/AuthInterceptor.java:69` in `intercept`\n\n**What.** The `apiKeySecurityScheme.name()` field from the remote agent's AgentCard (untrusted, server-controlled data) is used directly as the HTTP header name when placing client credentials. Combined with `JdkA2AHttpClient`'s `followRedirects(NORMAL)` policy, credentials under custom header names survive cross-origin redirects (only `Authorization` is stripped on newer JDKs), allowing a malicious agent to leak client credentials to third-party servers. Additionally, `AuthInterceptor` does not check that `location==HEADER` before placing the credential as a header.\n\n**Exploit scenari","public_affected_ranges":["< 1.3.0.Final"]}],"null_published_at":"2026-11-01T01:03:56.614Z","source_updated_at":"2026-10-20T21:04:17.000Z","source_disclosed_at":"2026-10-20T21:04:16.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-10-31T23:13:39.183Z"}],"next_cursor":null,"snapshot_revision":"42594"}