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CVE-2025-67733— Valkey Affected by RESP Protocol Injection via Lua error_reply

Quick assessment

Affected
valkey-io valkey
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Valkey是Valkey开源的一个灵活的分布式键值数据库。 Valkey 9.0.2之前版本、8.1.6之前版本、8.0.7之前版本和7.2.12之前版本存在注入漏洞，该漏洞源于Lua脚本的错误处理代码未正确处理空字符，可能导致数据损坏或被篡改。

CVSS 8.5 · High EPSS 0.59% · P45

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 4

VendorProduct Version RangeStatus
valkey-io valkey < 7.2.12 affected
>= 8.0.0, < 8.0.7 affected
>= 8.1.0, < 8.1.6 affected
>= 9.0.0, < 9.0.2 affected
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I. Basic Information for CVE-2025-67733

Vulnerability Information
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Vulnerability Title
Valkey Affected by RESP Protocol Injection via Lua error_reply
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
输出中的特殊元素转义处理不恰当(注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Valkey 注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Valkey是Valkey开源的一个灵活的分布式键值数据库。 Valkey 9.0.2之前版本、8.1.6之前版本、8.0.7之前版本和7.2.12之前版本存在注入漏洞，该漏洞源于Lua脚本的错误处理代码未正确处理空字符，可能导致数据损坏或被篡改。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
valkey-io valkey < 7.2.12 -

II. Public POCs for CVE-2025-67733

# POC Description Source Link Shenlong Link
1 None https://github.com/JYlab/CVE-2025-67733-RESP-Injection-PoC POC Details
2 Redis/Valkey RESP Injection PoC (CVE-2025-67733) https://github.com/JYlab/CVE-2025-67733 POC Details
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III. Intelligence Information for CVE-2025-67733

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Same Patch Batch · valkey-io · 2026-02-23 · 3 CVEs total

CVE-2026-21863 7.5 HIGH Malformed Valkey Cluster bus message can lead to Remote DoS
CVE-2026-27623 7.5 HIGH Valkey has Pre-Authentication DOS from malformed RESP request

IV. Related Vulnerabilities

Same product: valkey
Same vendor: valkey-io
Same weakness: CWE-74

V. Comments for CVE-2025-67733

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