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6.0
MEDIUM CVSS 3.1
CVE-2025-46818
Redis: Authenticated users can execute LUA scripts as a different user
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.

INFO

Published Date :

Oct. 3, 2025, 7:15 p.m.

Last Modified :

Oct. 6, 2025, 2:56 p.m.

Remotely Exploit :

No

Source :

[email protected]
Affected Products

The following products are affected by CVE-2025-46818 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Redis redis
: Total Affected Vendor : 1 | Products : 1
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 MEDIUM [email protected]
Solution
Update Redis to 8.2.2 or restrict Lua script execution using ACL.
  • Update Redis to version 8.2.2 or later.
  • Restrict Lua script execution via ACL.
  • Block EVAL and FUNCTION command families.
Public PoC/Exploit Available at Github

CVE-2025-46818 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2025-46818.

URL Resource
https://github.com/redis/redis/commit/45eac0262028c771b6f5307372814b75f49f7a9e
https://github.com/redis/redis/releases/tag/8.2.2
https://github.com/redis/redis/security/advisories/GHSA-qrv7-wcrx-q5jp
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-46818 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2025-46818 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

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dwisiswant0/CVE-2025-46818

CVE-2025-46818 – Redis Lua Sandbox Cross-User Escape

Lua

Updated: 1 day, 14 hours ago
2 stars 0 fork 0 watcher
Born at : Oct. 7, 2025, 4:56 a.m. This repo has been linked 1 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-46818 vulnerability anywhere in the article.

  • CybersecurityNews
PoC Exploit Released for Critical Lua Engine Vulnerabilities

Three newly disclosed vulnerabilities have been identified in the Lua scripting engine of Redis 7.4.5, each presenting severe risks of remote code execution and privilege escalation. Redrays has relea ... Read more

Published Date: Oct 08, 2025 (19 hours, 53 minutes ago)
  • Daily CyberSecurity
Critical Flaw CVE-2025-49844 (CVSS 10.0) Allows Remote Code Execution in Redis

Redis, the popular open-source in-memory data store widely used for real-time analytics, caching, and message brokering, has released multiple patches addressing four security vulnerabilities that cou ... Read more

Published Date: Oct 06, 2025 (3 days, 6 hours ago)

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2025-46818 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    Oct. 03, 2025

    Action Type Old Value New Value
    Added 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.
    Added CVSS V3.1 AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N
    Added CWE CWE-94
    Added Reference https://github.com/redis/redis/commit/45eac0262028c771b6f5307372814b75f49f7a9e
    Added Reference https://github.com/redis/redis/releases/tag/8.2.2
    Added Reference https://github.com/redis/redis/security/advisories/GHSA-qrv7-wcrx-q5jp
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 6.0
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact