Vulnerability details

CVE-2026-54341

dragonflydb dragonfly

Dragonfly: RESTORE operations may crash the server

CVSS 3.1
7.5High

Official 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.

CVSS scores

ScoreVersionSourceVector
7.5High 3.1 CVEProject cvelistV5 (CNA) (GitHub_M) CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

VendorProductVersionsSource
dragonflydb dragonfly < 1.39.0 CVEProject cvelistV5 (CNA)

References and advisories

2
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Details

Published
2026-06-26
Last updated
2026-06-26
State
Published
Assigner (CNA)
GitHub_M

Exploit prediction (EPSS)

0.49%
Probability of exploitation in 30 days
42.7%
Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable
Yes
Exploitation
Proof of concept
Technical impact
Partial

Weaknesses (CWE)

  • CWE-125
    Out-of-bounds Read