CVE-2023-22458 Integer overflow in multiple Redis commands can lead to denial-of-service
Authenticated users can crash Redis via integer overflow in HRANDFIELD or ZRANDMEMBER commands, causing denial of service.
- 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-2023-22458?
CVE-2023-22458 is a medium-severity vulnerability in redis, published on 20 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Redis is an in-memory database that persists on disk. Authenticated users can issue a `HRANDFIELD` or `ZRANDMEMBER` command with specially crafted arguments to trigger a denial-of-service by crashing Redis with an assertion failure. This problem affects Redis versions 6.2 or newer up to but not including 6.2.9 as well as versions 7.0 up to but not including 7.0.8. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Weakness: CWE-190
Which versions are affected by CVE-2023-22458?
3 open source packages ship an affected version, including redis, keydb and valkey. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
redis Bitnami | From 6.2.0 | 6.2.9, 7.0.8 |
keydb Bitnami | From 6.2.0 | 6.2.9, 7.0.8 |
valkey Bitnami | From 6.2.0 | 6.2.9, 7.0.8 |
Products include Redis Redis.
How do I fix CVE-2023-22458?
Upgrade redis to a fixed version for your release line: 6.2.9 or 7.0.8.
Is CVE-2023-22458 being exploited?
There is no known exploitation of CVE-2023-22458 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-2023-22458, AZL-13053, BIT-keydb-2023-22458, BIT-redis-2023-22458, BIT-valkey-2023-22458, CLEANSTART-2026-VB06755 and 2 more.