CVE-2025-46818

Unknown Unknown - Not Provided

BaseFortify

Publication date: 2025-10-03

Last updated on: 2025-11-12

Assigner: GitHub, Inc.

Description

Redis is an open source, in-memory database that persists on disk. Versions 8.2.1 and below allow an authenticated user to use a specially crafted Lua script to manipulate different LUA objects and potentially run their own code in the context of another user. The problem exists in all versions of Redis with LUA scripting. This issue is fixed in version 8.2.2. A workaround to mitigate the problem without patching the redis-server executable is to prevent users from executing LUA scripts. This can be done using ACL to block a script by restricting both the EVAL and FUNCTION command families.

CVSS Scores

EPSS Scores

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Meta Information

Published

2025-10-03

Last Modified

2025-11-12

Generated

2026-07-06

AI Q&A

2025-10-03

EPSS Evaluated

2026-07-05

NVD

CVE-2025-46818

EUVD

EUVD-2025-33201

Affected Vendors & Products

Vendor	Product	Version / Range
redis	redis	From 7.0.0 (inc) to 7.2.9 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-94	The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

Attack-Flow Graph

Executive Summary

This vulnerability in Redis versions 8.2.1 and below allows an authenticated user to use a specially crafted Lua script to manipulate different Lua objects and potentially execute their own code in the context of another user. It affects all Redis versions with Lua scripting enabled and is fixed in version 8.2.2. A workaround is to prevent users from executing Lua scripts by restricting the EVAL and FUNCTION command families using ACL.

Impact Analysis

The vulnerability can allow an authenticated user to run arbitrary code as another user, potentially leading to unauthorized access or actions within the Redis environment. This could compromise the confidentiality and integrity of data stored in Redis.

Mitigation Strategies

To mitigate this vulnerability immediately without patching, you should prevent users from executing LUA scripts by using Access Control Lists (ACL) to block the EVAL and FUNCTION command families. Alternatively, upgrade Redis to version 8.2.2 or later where the issue is fixed.

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