CVE-2026-47206CWE-116

Dragonfly: RESP Protocol Injection via Lua redis.error_reply() in EvalSerializer

Low · published June 26, 2026

CVSS v4.0
2.3
EPSS
0%
Percentile
38.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
2.3 · LOW
Vector
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
EPSS
0.00451 · 38.2th percentile
Weakness
CWE-116 · Improper Encoding or Escaping of Output
Published
2026-06-26T16:39Z
EPSS history
Timeline
  • 26 JUN 16:39Z
    Dragonfly: RESP Protocol Injection via Lua redis.error_reply() in EvalSerializer
    cvelistv5