# gRPC v1.78.2

> Networking & Messaging · 2026-11-05

A maintenance release with a security update and fixes for a denial-of-service issue and a memory leak. It also changes PHP callback behavior.

## Action needed
- **[security]** gRPC repository roots update
  - The gRPC repository roots are updated as a security change.

## Check if affected
- **[security]** `Health Watch RPC` denial-of-service fix
  - Applies if you use the `Health Watch RPC`.
  - The `Health Watch RPC` denial-of-service issue is fixed.

## Other recorded changes
- 2 (removed 1, defect_corrected 1)

[Full analysis](https://ratatosk.io/en/releases/grpc/v1.78.2)

[Original release notes](https://github.com/grpc/grpc/releases/tag/v1.78.2)