CVE-2024-31228 Denial-of-service due to unbounded pattern matching in Redis
Authenticated users can crash the Redis server by sending specially crafted long string match patterns, causing a stack overflow.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-31228?
CVE-2024-31228 is a medium-severity denial of service vulnerability in redis, published on 7 Oct 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Redis is an open source, in-memory database that persists on disk. Authenticated users can trigger a denial-of-service by using specially crafted, long string match patterns on supported commands such as `KEYS`, `SCAN`, `PSUBSCRIBE`, `FUNCTION LIST`, `COMMAND LIST` and ACL definitions. Matching of extremely long patterns may result in unbounded recursion, leading to stack overflow and process crash. This problem has been fixed in Redis versions 6.2.16, 7.2.6, and 7.4.1. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Weakness: CWE-674
Which versions are affected by CVE-2024-31228?
3 open source packages ship an affected version, including redis, keydb and valkey. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
redis Bitnami | From 2.2.5 | 6.2.16, 7.2.8, 7.4.1 |
keydb Bitnami | From 2.2.5 | 6.3.4 |
valkey Bitnami | All versions | 7.2.7, 8.0.1 |
Products include Redis Redis.
How do I fix CVE-2024-31228?
Upgrade redis to a fixed version for your release line: 6.2.16, 7.2.8 or 7.4.1.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2024-31228 being exploited?
There is no known exploitation of CVE-2024-31228 in the wild and no public exploit code.
Other vulnerabilities in redis
- CVE-2022-0543 Debian-specific Redis Server Lua Sandbox Escape
- CVE-2026-23479 redis-server use-after-free in unblock client flow may allow remote code execution
- CVE-2026-25243 redis-server RESTORE invalid memory access may allow remote code execution
- CVE-2025-62507 Redis: Bug in XACKDEL may lead to stack overflow and potential RCE
- CVE-2025-48367 Redis DoS Vulnerability due to bad connection error handling
Sources
Also known as ALPINE-CVE-2024-31228, AZL-50154, AZL-52011, BELL-CVE-2024-31228, BIT-keydb-2024-31228, BIT-redis-2024-31228 and 8 more.