# A2aproject A2a-Java vulnerabilities Source: https://junglewise.ai/threats/technologies/a2a-java Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour. Data: https://junglewise.ai/threats/technologies/a2a-java.json License: CC BY 4.0 with a link back Junglewise Threat Intelligence has tracked 6 vulnerabilities in A2aproject A2a-Java: 0 in the last 7 days and 6 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-117507, was published on 27 October 2026. 4 vulnerabilities in the last four weeks, up 100% on the four before (2). ## Counts - Last 7 days: 0 - Last 30 days: 4 - Last 90 days: 6 - All time: 6 (0 critical, 0 exploited in the wild) ## About A2aproject A2a-Java Java library for attribute-based access control and authentication. ## Latest A2aproject A2a-Java vulnerabilities - [CVE-2026-117507: a2aproject a2a-java race condition in TaskManager.saveTaskEvent](https://junglewise.ai/threats/cve-2026-117507-a-security-vulnerability-has-been-detected-in-a2aproject-a2a) (medium, CVSS 5.4, published 27 Oct 2026) - [CVE-2026-117506: a2aproject a2a-java resource exhaustion in push notification config store](https://junglewise.ai/threats/cve-2026-117506-a-weakness-has-been-identified-in-a2aproject-a2a-java-up-to-1-2) (medium, CVSS 4.3, published 27 Oct 2026) - [CVE-2026-117505: a2a-java resource consumption in ChildQueue](https://junglewise.ai/threats/cve-2026-117505-a-security-flaw-has-been-discovered-in-a2aproject-a2a-java-up-to) (medium, CVSS 4.3, published 27 Oct 2026) - [CVE-2026-116479: a2aproject a2a-java information exposure in JSON-RPC error handler](https://junglewise.ai/threats/cve-2026-116479-a-flaw-has-been-found-in-a2aproject-a2a-java-up-to-1-2-0-final) (medium, CVSS 4.3, published 26 Oct 2026) - [CVE-2026-90820: a2aproject a2a-java authorization bypass in onListTasks](https://junglewise.ai/threats/cve-2026-90820-a2aproject-a2a-java-authorization-bypass-in-onlisttasks) (medium, CVSS 4.3, published 14 Sep 2026) - [CVE-2026-90819: a2aproject a2a-java HTTP response splitting in push notification headers](https://junglewise.ai/threats/cve-2026-90819-a2aproject-a2a-java-http-response-splitting-in-push-notification) (high, CVSS 7.3, published 14 Sep 2026) ## Most severe A2aproject A2a-Java vulnerabilities - [CVE-2026-90819: a2aproject a2a-java HTTP response splitting in push notification headers](https://junglewise.ai/threats/cve-2026-90819-a2aproject-a2a-java-http-response-splitting-in-push-notification) (high, CVSS 7.3, published 14 Sep 2026) - [CVE-2026-117507: a2aproject a2a-java race condition in TaskManager.saveTaskEvent](https://junglewise.ai/threats/cve-2026-117507-a-security-vulnerability-has-been-detected-in-a2aproject-a2a) (medium, CVSS 5.4, published 27 Oct 2026) - [CVE-2026-90820: a2aproject a2a-java authorization bypass in onListTasks](https://junglewise.ai/threats/cve-2026-90820-a2aproject-a2a-java-authorization-bypass-in-onlisttasks) (medium, CVSS 4.3, published 14 Sep 2026) - [CVE-2026-117506: a2aproject a2a-java resource exhaustion in push notification config store](https://junglewise.ai/threats/cve-2026-117506-a-weakness-has-been-identified-in-a2aproject-a2a-java-up-to-1-2) (medium, CVSS 4.3, published 27 Oct 2026) - [CVE-2026-117505: a2a-java resource consumption in ChildQueue](https://junglewise.ai/threats/cve-2026-117505-a-security-flaw-has-been-discovered-in-a2aproject-a2a-java-up-to) (medium, CVSS 4.3, published 27 Oct 2026) - [CVE-2026-116479: a2aproject a2a-java information exposure in JSON-RPC error handler](https://junglewise.ai/threats/cve-2026-116479-a-flaw-has-been-found-in-a2aproject-a2a-java-up-to-1-2-0-final) (medium, CVSS 4.3, published 26 Oct 2026) ## Vulnerabilities per week 4 vulnerabilities in the last four weeks, up 100% on the four before (2). | Week of | Vulns | Critical | Exploited | | --- | --- | --- | --- | | 17 Aug 2026 | 0 | 0 | 0 | | 24 Aug 2026 | 0 | 0 | 0 | | 31 Aug 2026 | 0 | 0 | 0 | | 7 Sep 2026 | 0 | 0 | 0 | | 14 Sep 2026 | 2 | 0 | 0 | | 21 Sep 2026 | 0 | 0 | 0 | | 28 Sep 2026 | 0 | 0 | 0 | | 5 Oct 2026 | 0 | 0 | 0 | | 12 Oct 2026 | 0 | 0 | 0 | | 19 Oct 2026 | 0 | 0 | 0 | | 26 Oct 2026 | 4 | 0 | 0 | | 2 Nov 2026 | 0 | 0 | 0 | | 9 Nov 2026 | 0 | 0 | 0 | ## Other A2aproject technologies - [A2aproject A2a-Go](https://junglewise.ai/threats/technologies/a2a-go): 3 vulnerabilities - [A2aproject A2a-Rs](https://junglewise.ai/threats/technologies/a2a-rs): 3 vulnerabilities ## Sources NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "A2aproject A2a-Java vulnerabilities", https://junglewise.ai/threats/technologies/a2a-java, 9 November 2026.