Back to Database
Status published
Medium
CVE-2021-32672
Vulnerability in Lua Debugger in Redis
Vulnerability Description
Redis is an open source, in-memory database that persists on disk. When using the Redis Lua Debugger, users can send malformed requests that cause the debugger’s protocol parser to read data beyond the actual buffer. This issue affects all versions of Redis with Lua debugging support (3.2 or newer). The problem is fixed in versions 6.2.6, 6.0.16 and 5.0.14.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2021-32672
Credits & Attribution
No credits recorded in the NVD database.
References
- https://github.com/redis/redis/security/advisories/GHSA-9mj9-xx53-qmxm
- https://github.com/redis/redis/commit/6ac3c0b7abd35f37201ed2d6298ecef4ea1ae1dd
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VL5KXFN3ATM7IIM7Q4O4PWTSRGZ5744Z/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HTYQ5ZF37HNGTZWVNJD3VXP7I6MEEF42/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WR5WKJWXD4D6S3DJCZ56V74ESLTDQRAB/
- https://www.debian.org/security/2021/dsa-5001
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://security.netapp.com/advisory/ntap-20211104-0003/
- https://security.gentoo.org/glsa/202209-17
More from redis
View All →CVE-2025-62507
Redis: Bug in XACKDEL may lead to stack overflow and potential RCE
High
7.7
CVE-2025-49844
Redis Lua Use-After-Free may lead to remote code execution
Critical
10
CVE-2025-48367
Redis DoS Vulnerability due to bad connection error handling
High
7.5
CVE-2025-46819
Redis is vulnerable to DoS via specially crafted LUA scripts
Medium
6.3
CVE-2025-46818
Redis: Authenticated users can execute LUA scripts as a different user
Medium
6
Affected Vendor
redis
View all reports →Affected Software
redis
Vulnerable Versions:
>= 3.2.0, < 5.0.14, >= 6.0.0, < 6.0.16, >= 6.0.0, < 6.2.6
Timeline
Official Publish:
October 4th, 2021
Last Modified:
August 3rd, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N