CVE-2026-47206

LOW

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

Title source: cna

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.

References (3)

Core 3

Core References

X_Refsource_Confirm x_refsource_confirm

https://github.com/dragonflydb/dragonfly/security/advisories/GHSA-h77h-c6hc-qc9h

X_Refsource_Misc x_refsource_misc

https://github.com/dragonflydb/dragonfly/issues/7328

X_Refsource_Misc x_refsource_misc

https://github.com/dragonflydb/dragonfly/pull/7332

Scores

CVSS v4 2.3

EPSS 0.0028

EPSS Percentile 20.6%

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact partial

Details

CWE

CWE-116

Status published

Products (1)

dragonflydb/dragonfly < 1.38.9

Published Jun 26, 2026

Tracked Since Jun 26, 2026