go-redis allows potential out of order responses when `CLIENT SETINFO` times out during connection establishment

Open Source Vulnerabilities GO-2025-3540

Potential out of order responses when CLIENT SETINFO times out during connection establishment in github.com/redis/go-redis

Open Source Vulnerabilities CVE-2025-29923

go-redis is the official Redis client library for the Go programming language. Prior to 9.5.5, 9.6.3, and 9.7.3, go-redis potentially responds out of order when `CLIENT SETINFO` times out during connection establishment. This can happen when the client is configured to transmit its identity, there are network connectivity issues, or the client was configured with aggressive timeouts. The problem occurs for multiple use cases. For sticky connections, you receive persistent out-of-order responses for the lifetime of the connection. All commands in the pipeline receive incorrect responses. When used with the default ConnPool once a connection is returned after use with ConnPool#Put the read buffer will be checked and the connection will be marked as bad due to the unread data. This means that at most one out-of-order response before the connection is discarded. This issue is fixed in 9.5.5, 9.6.3, and 9.7.3. You can prevent the vulnerability by setting the flag DisableIndentity to true when constructing the client instance.

Open Source Vulnerabilities GHSA-92cp-5422-2mw7

### Impact The issue only occurs when the `CLIENT SETINFO` command times out during connection establishment. The following circumstances can cause such a timeout: 1. The client is configured to transmit its identity. This can be disabled via the `DisableIndentity` flag. 2. There are network connectivity issues 3. The client was configured with aggressive timeouts The impact differs by use case: * **Sticky connections**: Rather than using a connection from the pool on-demand, the caller can stick with a connection. Then you receive persistent out-of-order responses for the lifetime of the connection. * **Pipelines**: All commands in the pipeline receive incorrect responses. * **Default connection pool usage without pipelining**: When used with the default [ConnPool](https://github.com/redis/go-redis/blob/8fadbef84a3f4e7573f8b38e5023fd469470a8a4/internal/pool/pool.go#L77) once a connection is returned after use with [ConnPool#Put](https://github.com/redis/go-redis/blob/8fadbef84a3f4e7573f8b38e5023fd469470a8a4/internal/pool/pool.go#L366) the read buffer will be checked and the connection will be marked as bad due to the unread data. This means that at most one out-of-order response before the connection is discarded. ### Patches We prepared a fix in https://github.com/redis/go-redis/pull/3295 and plan to release patch versions soon. Versions 9.7.2, 9.6.3, and 9.5.5 were patched. However, 9.7.2 has been yanked, making 9.7.3 the lowest available 9.7.x version with a patch. ### Workarounds You can prevent the vulnerability by setting the flag `DisableIndentity` (BTW: We also need to fix the spelling.) to `true` when constructing the client instance. ### Credit Akhass Wasti Ramin Ghorashi Anton Amlinger Syed Rahman Mahesh Venkateswaran Sergey Zavoloka Aditya Adarwal Abdulla Anam Abd-Alhameed Alex Vanlint Gaurav Choudhary Vedanta Jha Yll Kelani Ryan Picard