Vulnerability · Published Jun 26, 2026 · Assigned by GitHub_M

CVE-2026-54341Dragonfly: RESTORE operations may crash the server

High 7.5

In plain English

A high-severity out-of-bounds read in dragonfly from dragonflydb. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 43% of all known vulnerabilities).

Severity (CVSS 3.1)7.5High

Exploit odds (30 days)0.5%top 57.4% 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 1.39.0, 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.

Affected products (as reported)

Vendor	Product	Versions
dragonflydb	dragonfly	< 1.39.0

Weakness: CWE-125 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

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