Scripting Commands Vulnerability in Valkey Distributed Key-Value Database
CVE-2025-67733

8.5HIGH

Key Information:

Vendor

Valkey-io

Status
Valkey
Vendor
CVE Published:
23 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-67733?

The Valkey distributed key-value database has a vulnerability that allows a malicious user to inject arbitrary data into the response stream using scripting commands. This can lead to the corruption of data or tampered responses affecting other users connected to the same session. The issue arises due to improper handling of null characters in the error handling code for Lua scripts. This vulnerability was addressed in versions 9.0.2, 8.1.6, 8.0.7, and 7.2.12.

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Affected Version(s)

valkey < 7.2.12 < 7.2.12

valkey >= 8.0.0, < 8.0.7 < 8.0.0, 8.0.7

valkey >= 8.1.0, < 8.1.6 < 8.1.0, 8.1.6

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2025-67733
Created by JYlab

References

https://github.com/valkey-io/valkey/security/advisories/G...
x_refsource_CONFIRM

CVSS V3.1

Score:
8.5
Severity:
HIGH
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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