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

Quick assessment

Affected
dragonflydb dragonfly
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

DragonflyDB Dragonfly是DragonflyDB公司的一个框架,可以对任何内容类型进行动态处理。 DragonflyDB dragonfly 1.39.0之前版本存在缓冲区错误漏洞，该漏洞源于特制的RESTORE有效载荷触发了lispack集合加载器中的越界读取，可能导致未经身份验证的远程攻击者通过一个约24字节的命令造成服务器崩溃，实现远程可重复的拒绝服务攻击。

CVSS 7.5 · High EPSS 0.71% · P52

Affected Version Matrix 1

VendorProduct Version RangeStatus
dragonflydb dragonfly < 1.39.0 affected
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I. Basic Information for CVE-2026-54341

Vulnerability Information
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Vulnerability Title
Dragonfly: RESTORE operations may crash the server
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
DragonflyDB dragonfly 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
DragonflyDB Dragonfly是DragonflyDB公司的一个框架,可以对任何内容类型进行动态处理。 DragonflyDB dragonfly 1.39.0之前版本存在缓冲区错误漏洞，该漏洞源于特制的RESTORE有效载荷触发了lispack集合加载器中的越界读取，可能导致未经身份验证的远程攻击者通过一个约24字节的命令造成服务器崩溃，实现远程可重复的拒绝服务攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
dragonflydb dragonfly < 1.39.0 -

II. Public POCs for CVE-2026-54341

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 8451 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
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Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-54341

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Patches & Fixes for CVE-2026-54341 (1)

Vendor Advisories for CVE-2026-54341 (1)

IV. Related Vulnerabilities

Same product: dragonfly
Same vendor: dragonflydb
Same weakness: CWE-125

V. Comments for CVE-2026-54341

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