{"cve":"CVE-2026-111762","nvd":{"published":"2026-10-20T15:17:13.210","modified":"2026-10-20T19:55:49.343","status":"Awaiting Analysis","description":"A2A Java SDK is the official Java SDK for the Agent2Agent (A2A) Protocol. Prior to 1.3.0.Final, RestHandler.parseRequestBody in `transport/rest/src/main/java/org/a2aproject/sdk/transport/rest/handler/RestHandler.java` logs the entire JSON request body at SEVERE level when JsonFormat.parser().merge() throws InvalidProtocolBufferException. With push notifications enabled, createTaskPushNotificationConfiguration reaches this parser for requests to `/v1/tenants/{tenant}/tasks/{taskId}/pushNotificationConfigs`, whose token and authentication.credentials fields can contain bearer tokens and authentication credentials for client push endpoints. A valid JSON body that fails protobuf deserialization, including an unknown field under strict parsing or a schema mismatch, causes those secrets to be written to the server logs in cleartext. An attacker with access to the server logs or a log aggregation system can retrieve the credentials and potentially use the credentials to send forged task status updates to the client's push notification endpoint. This issue is fixed in version 1.3.0.Final.","cvss_v4":{"vector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","score":5.7},"cvss_v3":null,"cwes":["CWE-532"],"references":["https://github.com/a2aproject/a2a-java/commit/88827105fee0daaac0d883a4a68eb644571d7230","https://github.com/a2aproject/a2a-java/releases/tag/v1.3.0.Final","https://github.com/a2aproject/a2a-java/security/advisories/GHSA-x32g-jvvm-4725"],"products":[],"source":"nvd","synced_at":"2026-10-21T03:56:58.798400159+00:00"},"epss":{"cve":"CVE-2026-111762","score":0.00174,"percentile":0.06791,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-x32g-jvvm-4725","url":"https://osv.dev/vulnerability/GHSA-x32g-jvvm-4725","summary":"A2A Java SDK: Push notification credentials logged in cleartext on protobuf parse failure","modified":"2026-10-20T21:15:04.056033613Z","packages":[{"ecosystem":"Maven","name":"org.a2aproject.sdk:a2a-java-sdk-transport-rest","purl":"pkg:maven/org.a2aproject.sdk/a2a-java-sdk-transport-rest","ranges":["<1.3.0.Final"],"fixed":["1.3.0.Final"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}