# GO-2026-6061 - Vulnerabilities in the xDS RBAC authorization engine and the HTTP/2 transport server implementation in…

Source: https://junglewise.ai/threats/go-2026-6061-vulnerabilities-in-the-xds-rbac-authorization-engine-and-2c07d92a  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-27  
License: CC BY 4.0 with a link back

Severity: info · Published 2026-07-27

Vulnerabilities in the xDS RBAC authorization engine and the HTTP/2 transport server implementation in google.golang.org/grpc

Technologies: [google.golang.org/grpc (Go)](https://junglewise.ai/threats/technologies/google-golang-org-grpc). Vendors: [Go](https://junglewise.ai/threats/vendors/go).

## Quick answers

**Is This vulnerability exploited in the wild?** No. Junglewise Threat Intelligence has no report of This vulnerability being exploited in the wild.

**How severe is This vulnerability?** Informational severity, published 27 July 2026.

**Which products and versions are affected?** google.golang.org/grpc (Go) SEMVER:introduced=0,fixed=1.82.1.

**Is there a fix for This vulnerability?** Yes. google.golang.org/grpc (Go): upgrade to 1.82.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected?** Check whether you run google.golang.org/grpc (Go) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- google.golang.org/grpc (Go): upgrade to 1.82.1 or later

  ```sh
  go get google.golang.org/grpc@v1.82.1
  ```


## Affected products

- google.golang.org/grpc (Go) SEMVER:introduced=0,fixed=1.82.1

## Related threats

- [gRPC-Go xDS server denial of service via missing headers](https://junglewise.ai/threats/cve-2026-84445-grpc-go-xds-server-denial-of-service-via-missing-headers)
- [gRPC-Go heap memory exhaustion via HTTP/2 DATA frame fragmentation](https://junglewise.ai/threats/cve-2026-84304-grpc-go-heap-memory-exhaustion-via-http-2-data-frame)
- [gRPC-Go xDS RBAC HTTP filter bypass via case-sensitive header matching](https://junglewise.ai/threats/cve-2026-84303-grpc-go-xds-rbac-http-filter-bypass-via-case-sensitive-header)
- [gRPC-Go auth bypass and DoS in xDS RBAC and HTTP/2 transport](https://junglewise.ai/threats/grpc-go-auth-bypass-and-dos-in-xds-rbac-and-http-2-transport-878951d5)
- [gRPC gRPC-Go authorization bypass in HTTP/2 path validation](https://junglewise.ai/threats/cve-2026-33186-grpc-grpc-go-authorization-bypass-in-http-2-path-validation)