CVE-2026-116477 a2aproject a2a-dotnet Parser A2AJsonRpcProcessor.cs A2AJsonRpcProcessor.ProcessRequestAsync information exposure
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-116477?
CVE-2026-116477 is a medium-severity vulnerability in a2aproject a2a-dotnet, published on 26 Oct 2026.
Official description
A security vulnerability has been detected in a2aproject a2a-dotnet up to 1.0.0-preview2. The impacted element is the function A2AJsonRpcProcessor.ProcessRequestAsync of the file src/A2A.AspNetCore/A2AJsonRpcProcessor.cs of the component Parser. The manipulation leads to information exposure through error message. It is possible to initiate the attack remotely. Upgrading to version 1.0.0-preview3 is sufficient to resolve this issue. The identifier of the patch is ccbd12b6108a6a8f0fd5d8b4a9ece3c8a94ba1e4. Upgrading the affected component is recommended.
Which versions are affected by CVE-2026-116477?
How do I fix CVE-2026-116477?
No fix has been published for CVE-2026-116477 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-116477 being exploited?
There is no known exploitation of CVE-2026-116477 in the wild and no public exploit code.
Sources
Also known as GHSA-6fjg-cx22-jv29.