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CVE-2026-66373

Quick assessment

Affected
Redis Redis
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.

Redis是Redis组织开源的一套开源的使用ANSI C编写、支持网络、可基于内存亦可持久化的日志型、键值(Key-Value)存储数据库,并提供多种语言的API。 Redis 8.8.0之前版本存在资源管理错误漏洞，该漏洞源于在已认证攻击者可执行RESTORE的特殊情况下，RESTORE有效载荷中相同的NACK（待处理条目）被多个消费者引用，通过XGROUP DELCONSUMER删除两个消费者导致双重释放，可能导致远程代码执行。

CVSS 7.5 · High EPSS 0.87% · P57

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
Redis Redis < 8.8.0 affected
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I. Basic Information for CVE-2026-66373

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Redis before 8.8.0, in the unusual case where an authenticated attacker can execute RESTORE, allows remote code execution via a RESTORE payload where the same NACK (pending entry) is referenced by more than one consumer, because deleting both consumers via XGROUP DELCONSUMER leads to a double free. NOTE: this issue exists because of an incomplete fix for CVE-2026-25243.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
双重释放
Source: CVE Program / CVE List V5
Vulnerability Title
Redis 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Redis是Redis组织开源的一套开源的使用ANSI C编写、支持网络、可基于内存亦可持久化的日志型、键值(Key-Value)存储数据库,并提供多种语言的API。 Redis 8.8.0之前版本存在资源管理错误漏洞，该漏洞源于在已认证攻击者可执行RESTORE的特殊情况下，RESTORE有效载荷中相同的NACK（待处理条目）被多个消费者引用，通过XGROUP DELCONSUMER删除两个消费者导致双重释放，可能导致远程代码执行。
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
Redis Redis 0 ~ 8.8.0 -

II. Public POCs for CVE-2026-66373

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Reproduced successfully in a real sandbox · Below is the actual recording of building the environment and exploiting the vulnerability.
Reproduction recording is a Pro+ exclusive
Watch the full sandbox build + live exploit recording for this CVE. Limited-time ¥499/mo.
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claude_code · 9088 chars
GitHub 复现环境（可 clone 直接跑）
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
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Full executable POC code
Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-66373

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Patches & Fixes for CVE-2026-66373 (1)

Exploits & Public PoCs for CVE-2026-66373 (1)

News Coverage for CVE-2026-66373 (1)

IV. Related Vulnerabilities

Same product: Redis
Same vendor: Redis
Same weakness: CWE-415

V. Comments for CVE-2026-66373

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