Out-of-bounds Read Affecting valkey-io/valkey package, versions [,7.2.12)[8.0.0-rc1,8.0.7)[8.1.0-rc1,8.1.6)[9.0.0-rc1,9.0.2)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-UNMANAGED-VALKEYIOVALKEY-15357997
- published26 Feb 2026
- disclosed23 Feb 2026
- credit0x Kato
Introduced: 23 Feb 2026
CVE-2026-21863 (opens in a new tab)How to fix?
Upgrade valkey-io/valkey to version 7.2.12, 8.0.7, 8.1.6, 9.0.2 or higher.
Overview
Affected versions of this package are vulnerable to Out-of-bounds Read in the clusterbus packet processing. An attacker can cause the service to crash and disrupt availability by sending specially crafted invalid packets to the exposed cluster bus port.