CVE-2025-29923: go-redis allows potential out of order responses when `CLIENT SETINFO` times out during connection establishment

3.7 CVSS

Description

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.

Classification

CVE ID: CVE-2025-29923

CVSS Base Severity: LOW

CVSS Base Score: 3.7

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

Problem Types

CWE-20: Improper Input Validation

Affected Products

Vendor: redis

Product: go-redis

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.06% (probability of being exploited)

EPSS Percentile: 19.74% (scored less or equal to compared to others)

EPSS Date: 2025-04-18 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2025-29923
https://github.com/redis/go-redis/security/advisories/GHSA-92cp-5422-2mw7
https://github.com/redis/go-redis/pull/3295
https://github.com/redis/go-redis/commit/d236865b0cfa1b752ea4b7da666b1fdcd0acebb6

Timeline