CVE-2025-67733
Valkey Affected by RESP Protocol Injection via Lua error_reply
CVSS Score
8.5
EPSS Score
0.0%
EPSS Percentile
0th
Valkey is a distributed key-value database. Prior to versions 9.0.2, 8.1.6, 8.0.7, and 7.2.12, a malicious user can use scripting commands to inject arbitrary information into the response stream for the given client, potentially corrupting or returning tampered data to other users on the same connection. The error handling code for lua scripts does not properly handle null characters. Versions 9.0.2, 8.1.6, 8.0.7, and 7.2.12 fix the issue.
| CWE | CWE-74 |
| Vendor | valkey-io |
| Product | valkey |
| Published | Feb 23, 2026 |
| Last Updated | Feb 25, 2026 |
Stay Ahead of the Next One
Get instant alerts for valkey-io valkey
Be the first to know when new high vulnerabilities affecting valkey-io valkey are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
None
Integrity
Low
Availability
High
Affected Versions
valkey-io / valkey
< 7.2.12 >= 8.0.0, < 8.0.7 >= 8.1.0, < 8.1.6 >= 9.0.0, < 9.0.2