CVE-2026-90820
A security vulnerability has been detected in a2aproject a2a-java 1.2.0.
Impact
A security vulnerability has been detected in a2aproject a2a-java 1.2.0. The impacted element is the function AuthorizationRequestHandlerDecorator.onListTasks of the file server-common/src/main/java/org/a2aproject/sdk/server/requesthandlers/AuthorizationRequestHandlerDecorator.java. Such manipulation leads to missing authorization. The attack can be launched remotely. Upgrading to version 1.3.0 is sufficient to resolve this issue. The name of the patch is e9a1abf9c90c02b16d17293afdc3cc2f555d63a6. The affected component should be upgraded.
Affected packages
This record carries no package version data, so it cannot be matched against a dependency list automatically. Read the advisory and compare your version by hand.
Weakness classification
References
- NVD record
- CVE.org record
- https://github.com/a2aproject/a2a-java/
- https://github.com/a2aproject/a2a-java/commit/e9a1abf9c90c02b16d17293afdc3cc2f555d63a6
- https://github.com/a2aproject/a2a-java/pull/1038
- https://github.com/a2aproject/a2a-java/releases/tag/v1.3.0.Final
- https://vuldb.com/cve/CVE-2026-90820
- https://vuldb.com/submit/925152
- https://vuldb.com/vuln/403323
- https://vuldb.com/vuln/403323/cti