Description
Dragonfly is an in-memory data store built for modern application workloads. Prior to 1.39.0, a crafted RESTORE payload triggers an out-of-bounds read in DragonflyDB's listpack collection loaders, crashing the entire server process (SIGSEGV). Because DragonflyDB requires no authentication by default and RESTORE is a normal keyspace command, an unauthenticated remote attacker can crash the server with a single ~24-byte command — a remote, repeatable denial of service. This vulnerability is fixed in 1.39.0.
References (2)
Core 2
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/dragonflydb/dragonfly/security/advisories/GHSA-cwjr-j869-h8q9
X_Refsource_Misc x_refsource_misc
https://github.com/dragonflydb/dragonfly/pull/7502
Scores
CVSS v3
7.5
EPSS
0.0040
EPSS Percentile
32.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-125
Status
published
Products (1)
dragonflydb/dragonfly
< 1.39.0
Published
Jun 26, 2026
Tracked Since
Jun 26, 2026