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VulnerabilityPublished

CVE-2026-54341: dragonflydb dragonfly · Out-of-bounds Read

Affects dragonflydb dragonflySource CVE Database V5

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Not known to be exploited · CVSS 7.5 High : upgrade to 1.39.0 soon.

Data as of 8 Nov 2026, 23:24 UTC

CVSS 3.1 base score
7.5High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 42% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 1.39.0
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 26 Jun 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 8 Nov 2026.

What to do

Upgrade dragonfly and dragonflydb/dragonfly to 1.39.0.

Affected software

ProductAffectedFixed in
dragonflydbdragonflyAffected
  • <1.39.0
Fixed in
  • 1.39.0
GitHubdragonflydb/dragonflypkg:github/dragonflydb/dragonflyOther threatsAffected
  • <1.39.0
Fixed in
  • 1.39.0

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Upgrade DragonflyDB to version 1.39.0 or later, where this vulnerability is fixed. Until upgrading, consider restricting access to the RESTORE command or implementing authentication if possible to reduce exposure. Patch status is confirmed fixed in version 1.39.0.

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

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