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Vulnerability record · CVE-2026-54341 · published 26 June 2026

CVE-2026-54341: Out-of-bounds read vulnerability

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.

7.5 CVSS 3.1 High EPSS 0.71% · top 48.4% CWE-125 · Out-of-bounds read Deferred
7.5CVSS 3.1 base score
0.71%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
26 Jun 2026Last modified by NVD

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

References

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

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Source: NIST National Vulnerability Database (record CVE-2026-54341), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.