---
id: CVE-2026-104192
title: Dragonfly is an in-memory data store built for modern application workloads
summary: >-
  Dragonfly is an in-memory data store built for modern application workloads.
  Prior to 1.40, OpaqueObjLoader::CreateStream in src/server/rdb_load.cc can
  associate one streamNACK with a consumer group's global PEL and a
  consumer-local PEL,…
severity: critical
cvss: 9.6
cvssVector: 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H'
cwe:
  - CWE-415
published: '2026-10-13'
updated: '2026-10-13'
sourceUpdated: '2026-10-13T16:17:11.333'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-104192'
references:
  - url: >-
      https://github.com/dragonflydb/dragonfly/commit/6c6b27a5cfd03d67eb9583ab84a0f0709e3bc77e
    label: security-advisories@github.com
  - url: 'https://github.com/dragonflydb/dragonfly/pull/7929'
    label: security-advisories@github.com
  - url: >-
      https://github.com/dragonflydb/dragonfly/security/advisories/GHSA-cg35-6jf4-crfh
    label: security-advisories@github.com
tags:
  - nvd
ingestedAt: '2026-10-13T15:33:40.067Z'
---

## Overview

Dragonfly is an in-memory data store built for modern application workloads. Prior to 1.40, OpaqueObjLoader::CreateStream in src/server/rdb_load.cc can associate one streamNACK with a consumer group's global PEL and a consumer-local PEL, then free the shared object when a duplicate consumer entry is rejected. Cleanup subsequently frees the same object again. In the default configuration, where Dragonfly ships with authentication disabled, an unauthenticated client can trigger the double-free by sending a crafted serialized stream to RESTORE, causing allocator corruption, denial of service, and potentially attacker-controlled code execution as the Dragonfly service account. The source fix has not yet been mapped to a published release.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.