CVE-2026-54341 | Dragonfly is an in-memory data store built for modern applic… | CVSS 7.5 HIGH

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.

Metadata

CVE ID: CVE-2026-54341
State: PUBLISHED
Assigner: GitHub_M
Reserved: 2026-06-12 19:23 UTC
Published: 2026-06-26 16:42 UTC
Last updated: 2026-06-26 18:32 UTC
Primary CWE: CWE-125
CWE-125: Out-of-bounds Read
Vendor / Product: dragonflydb / dragonfly
Sources: cve.org · NVD

Severity & Metrics

7.5 HIGH CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC — CISA Coordinator

Exploitation: PoC
Automatable: yes
Tech. Impact: partial

Affected products (1)

Vendor	Product	Platform	Versions
dragonflydb	dragonfly	—	< 1.39.0

Weakness (CWE)

CWE	Source	Description
CWE-125	cna	CWE-125: Out-of-bounds Read

CVSS scores (1)

Score	Severity	Version	Source	Vector
7.5	HIGH	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References (2)

https://github.com/dragonflydb/dragonfly/security/advisories/GHSA-cwjr-j869-h8q9 https://github.com/dragonflydb/dragonfly/security/advisories/GHSA-cwjr-j869-h8q9
https://github.com/dragonflydb/dragonfly/pull/7502 https://github.com/dragonflydb/dragonfly/pull/7502