Vulnerability · Published Jun 26, 2026 · Assigned by GitHub_M

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

Low 2.3

In plain English

A low-severity security flaw in dragonfly from dragonflydb. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 30% of all known vulnerabilities).

Severity (CVSS 4.0)2.3Low

Exploit odds (30 days)0.4%top 70.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
dragonflydb	dragonfly	< 1.38.9

Weakness: CWE-116 · 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

References

https://github.com/dragonflydb/dragonfly/security/advisories/GHSA-h77h-c6hc-qc9h x_refsource_CONFIRM
https://github.com/dragonflydb/dragonfly/issues/7328 x_refsource_MISC
https://github.com/dragonflydb/dragonfly/pull/7332 x_refsource_MISC