CVE-2026-27623
High · 7.5CVSS
7.5
EPSS
0.7%
Published
Feb 23, 2026
CISA due date
—
The record
Valkey is a distributed key-value database. Starting in version 9.0.0 and prior to version 9.0.3, a malicious actor with network access to Valkey can cause the system to abort by triggering an assertion. When processing incoming requests, the Valkey system does not properly reset the networking state after processing an empty request. A malicious actor can then send a request that the server incorrectly identifies as breaking server side invariants, which results in the server shutting down. Version 9.0.3 fixes the issue. As an additional mitigation, properly isolate Valkey deployments so that only trusted users have access.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| openSUSE:Tumbleweed | valkey | 0 | 9.0.3-1.1 |
Related vulnerabilities
- CVE-2026-23631 Redis is an in-memory data structure store. Also affects valkey
- CVE-2026-25243 Redis is an in-memory data structure store. Also affects valkey
- CVE-2026-23479 Redis is an in-memory data structure store. Also affects valkey
- CVE-2025-67733 Valkey is a distributed key-value database. Also affects valkey
- CVE-2026-21863 Valkey is a distributed key-value database. Also affects valkey
- CVE-2025-49844 Redis is an open source, in-memory database that persists on disk. Also affects valkey
- CVE-2024-46981 Redis is an open source, in-memory database that persists on disk. Also affects valkey
- CVE-2024-51741 Redis is an open source, in-memory database that persists on disk. Also affects valkey