Redis up to 8.2.1 Lua code injection

CVSS Meta Temp Score
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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Redis up to 8.2.1. Affected by this issue is some unknown functionality of the component Lua Handler. This manipulation causes code injection. This vulnerability is registered as CVE-2025-46818. The attack needs to be launched locally. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in Redis up to 8.2.1 and classified as critical. Affected by this vulnerability is some unknown functionality of the component Lua Handler. The manipulation with an unknown input leads to a code injection vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

The advisory is shared at github.com. This vulnerability is known as CVE-2025-46818 since 04/30/2025. The exploitation appears to be difficult. An attack has to be approached locally. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1059 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 269462 (Linux Distros Unpatched Vulnerability : CVE-2025-46818), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 8.2.2 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (269462) and CERT Bund (WID-SEC-2025-2196). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • Debian Linux
  • Google Cloud Platform
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Fedora Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • Trend Micro Apex One
  • SUSE openSUSE
  • RESF Rocky Linux
  • Open Source Redis
  • F5 BIG-IP

Productinfo

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.9

VulDB Base Score: 4.5
VulDB Temp Score: 4.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.3
NVD Vector: 🔒

CNA Base Score: 6.0
CNA Vector (GitHub_M): 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Code injection
CWE: CWE-94 / CWE-74 / CWE-707
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 269462
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-46818

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Redis 8.2.2

Timelineinfo

04/30/2025 CVE reserved
10/03/2025 +156 days Advisory disclosed
10/03/2025 +0 days VulDB entry created
01/15/2026 +104 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2025-46818 (🔒)
GCVE (CVE): GCVE-0-2025-46818
GCVE (VulDB): GCVE-100-326965
CERT Bund: WID-SEC-2025-2196 - Redis: Mehrere Schwachstellen

Entryinfo

Created: 10/03/2025 21:21
Updated: 01/15/2026 19:50
Changes: 10/03/2025 21:21 (63), 10/06/2025 22:17 (6), 10/08/2025 17:26 (2), 10/09/2025 13:00 (2), 10/11/2025 04:13 (11), 10/30/2025 00:26 (1), 11/15/2025 15:10 (1), 01/15/2026 19:50 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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