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CVE-2026-81934— Redis TLS pending-data list use-after-free

Quick assessment

Affected
Redis Redis
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
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组织开源的一款内存键值数据库。 Redis 8.8.0版本存在资源管理错误漏洞，该漏洞源于tlsProcessPendingData()函数存在释放后重用问题，可能导致远程未认证攻击者以Redis服务器权限执行任意命令。

CVSS 7.1 · High EPSS 0.48% · P40

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 24

VendorProduct Version RangeStatus
Redis Redis 8.2.9 unaffected
8.4.6 unaffected
8.6.6 unaffected
8.8.2 unaffected
8.10.1 unaffected
7.4.11 unaffected
6.2.24 unaffected
7.2.16 unaffected
… +8 more rows
Redis Redis Software (Enterprise) 8.2.0-46 unaffected
8.0.20-96 unaffected
7.22.2-179 unaffected
7.8.6-303 unaffected
< 8.2.0-46 affected
< 8.0.20-96 affected
< 7.22.2-179 affected
< 7.8.6-303 affected
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I. Basic Information for CVE-2026-81934

Vulnerability Information
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Vulnerability Title
Redis TLS pending-data list use-after-free
Source: CVE Program / CVE List V5
Vulnerability Description
Redis contains a use-after-free vulnerability in the 'tlsProcessPendingData()' function, which handles the TLS pending-data list if Redis is configured with TLS support. A remote, unauthenticated attacker may be able to execute arbitrary commands with the privileges of the Redis server.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
释放后使用
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组织开源的一款内存键值数据库。 Redis 8.8.0版本存在资源管理错误漏洞，该漏洞源于tlsProcessPendingData()函数存在释放后重用问题，可能导致远程未认证攻击者以Redis服务器权限执行任意命令。
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 8.2.9 -
Redis Redis Software (Enterprise) 8.2.0-46 -

II. Public POCs for CVE-2026-81934

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III. Intelligence Information for CVE-2026-81934

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Patches & Fixes for CVE-2026-81934 (1)

Vendor Advisories for CVE-2026-81934 (1)

Proof of Concept for CVE-2026-81934 (1)

Vendor Pages for CVE-2026-81934 (20)

Other References for CVE-2026-81934 (1)

IV. Related Vulnerabilities

Same product: Redis
Same vendor: Redis
Same weakness: CWE-416

V. Comments for CVE-2026-81934

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