CVE-2026-23479— redis-server use-after-free in unblock client flow may allow remote code execution
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2026-23479
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
redis-server use-after-free in unblock client flow may allow remote code execution
Source: NVD (National Vulnerability Database)
Vulnerability Description
Redis is an in-memory data structure store. In redis-server from 7.2.0 until 8.6.3, the unblock client flow does not handle an error return from `processCommandAndResetClient` when re-executing a blocked command. If a blocked client is evicted during this flow, an authenticated attacker can trigger a use-after-free that may lead to remote code execution. This has been patched in version 8.6.3.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
释放后使用
Source: NVD (National Vulnerability Database)
Vulnerability Title
Redis 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Redis是美国Redis公司的一套开源的使用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 7.2.0至8.6.3版本存在资源管理错误漏洞，该漏洞源于取消阻塞客户端流程未处理重新执行阻塞命令时processCommandAndResetClient的错误返回，若阻塞客户端在此流程中被驱逐，可能导致释放后重用，进而导致远程代码执行。
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
II. Public POCs for CVE-2026-23479
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2026-23479
请登录查看更多情报信息。
Same Patch Batch · redis · 2026-05-05 · 3 CVEs total
| CVE-2026-25243 | redis-server RESTORE invalid memory access may allow remote code execution | |
| CVE-2026-23631 | redis-server Lua use-after-free may allow remote code execution |
IV. Related Vulnerabilities
Same product: redis
- CVE-2026-25243
redis-server RESTORE invalid memory access may allow remote - CVE-2026-23631
redis-server Lua use-after-free may allow remote code execut - CVE-2025-62507
Redis: Bug in XACKDEL may lead to stack overflow and potenti - CVE-2025-49844
Redis Lua Use-After-Free may lead to remote code execution - CVE-2025-46819
Redis is vulnerable to DoS via specially crafted LUA scripts
Same vendor: redis
- CVE-2026-25243
redis-server RESTORE invalid memory access may allow remote - CVE-2026-23631
redis-server Lua use-after-free may allow remote code execut - CVE-2025-62507
Redis: Bug in XACKDEL may lead to stack overflow and potenti - CVE-2025-49844
Redis Lua Use-After-Free may lead to remote code execution - CVE-2025-46819
Redis is vulnerable to DoS via specially crafted LUA scripts
V. Comments for CVE-2026-23479
No comments yet