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CVE-2026-47206— Dragonfly: RESP Protocol Injection via Lua redis.error_reply() in EvalSerializer

AI Predicted 5.4 Difficulty: Easy EPSS 0.28% · P21

Possible ATT&CK Techniques 1AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProductVersion RangeStatus
dragonflydbdragonfly< 1.38.9affected
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I. Basic Information for CVE-2026-47206

Vulnerability Information
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Vulnerability Title
Dragonfly: RESP Protocol Injection via Lua redis.error_reply() in EvalSerializer
Source: CVE Program / CVE List V5
Vulnerability Description
Dragonfly is an in-memory data store built for modern application workloads. Prior to 1.39.9, Dragonfly has a RESP Protocol Injection via Lua redis.error_reply() in EvalSerializer. An authenticated user can inject arbitrary RESP messages into the connection's response stream, potentially causing response desynchronization in connection-pool clients. This vulnerability is fixed in 1.39.9.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
对输出编码和转义不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
DragonflyDB Dragonfly 输出处理不当漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
DragonflyDB Dragonfly是DragonflyDB公司的一个框架,可以对任何内容类型进行动态处理。 DragonflyDB Dragonfly 1.39.9之前版本存在输出处理不当漏洞，该漏洞源于EvalSerializer组件中通过Lua redis.error_reply()存在RESP协议注入，可能导致经过身份验证的用户在连接响应流中注入任意RESP消息，从而引起连接池客户端响应不同步。
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

VendorProductAffected VersionsCPESubscribe
dragonflydbdragonfly < 1.38.9 -

II. Public POCs for CVE-2026-47206

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III. Intelligence Information for CVE-2026-47206

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Patches & Fixes for CVE-2026-47206 (1)

Vendor Advisories for CVE-2026-47206 (2)

IV. Related Vulnerabilities

Same product: dragonfly
Same vendor: dragonflydb
Same weakness: CWE-116

V. Comments for CVE-2026-47206

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