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TI-2025-29451 Aliases CVE-2025-46818

Redis: Authenticated users can execute LUA scripts as a different user

Priority LOW 35CWE-94Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-94.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00744 54th percentileScored 2026-11-07
Fix Fixed redis (redis): 8.2.2Red Hat: 8 advisories

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Redisredisbefore 8.2.28.2.2Patch availableCNA
  • redis VendorRedis Affected before 8.2.2 Fixed in 8.2.2 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:*before 6.2.20; 7.0 to before 7.2.11; 7.4.0 to before 7.4.6; 8.0.0 to before 8.0.4; 8.2.0 to before 8.2.2VulnerableRedis
  • cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:* Versions before 6.2.20; 7.0 to before 7.2.11; 7.4.0 to before 7.4.6; 8.0.0 to before 8.0.4; 8.2.0 to before 8.2.2 Vulnerable ·Redis

Remediation

  • Fix · CNA redis (redis) Fixed in 8.2.2

Red Hat 8 advisories

  • RHSA-2025:21936 Released 2025-11-24 · Red Hat rating Important
    valkey security update
    • Red Hat Enterprise Linux AppStream (v. 10) valkey-8.0.6-2.el10_1, valkey-devel-8.0.6-2.el10_1
  • RHSA-2025:21916 Released 2025-11-24 · Red Hat rating Important
    valkey security update
    • Red Hat Enterprise Linux AppStream (v. 9) valkey-8.0.6-2.el9_7, valkey-devel-8.0.6-2.el9_7
  • RHSA-2025:20955 Released 2025-11-11 · Red Hat rating Important
    redis:7 security update
    • Red Hat Enterprise Linux AppStream (v. 9) redis-7.2.11-1.module+el9.7.0+23559+d075163a.aarch64::redis:7, redis-7.2.11-1.module+el9.7.0+23559+d075163a.ppc64le::redis:7, redis-7.2.11-1.module+el9.7.0+23559+d075163a.s390x::redis:7 +7
Show 5 more Red Hat advisories
  • RHSA-2025:20926 Released 2025-11-11 · Red Hat rating Important
    redis security update
    • Red Hat Enterprise Linux AppStream (v. 9) redis-6.2.20-2.el9_7, redis-devel-6.2.20-2.el9_7, redis-doc-6.2.20-2.el9_7
  • RHSA-2025:19675 Released 2025-11-04 · Red Hat rating Important
    valkey security update
    • Red Hat Enterprise Linux AppStream (v. 10) valkey-8.0.6-1.el10_0, valkey-devel-8.0.6-1.el10_0
  • RHSA-2025:19345 Released 2025-10-30 · Red Hat rating Important
    redis:7 security update
    • Red Hat Enterprise Linux AppStream (v. 9) redis-7.2.11-1.module+el9.6.0+23552+a3d3d132.aarch64::redis:7, redis-7.2.11-1.module+el9.6.0+23552+a3d3d132.ppc64le::redis:7, redis-7.2.11-1.module+el9.6.0+23552+a3d3d132.s390x::redis:7 +7
  • RHSA-2025:19237 Released 2025-10-29 · Red Hat rating Important
    redis security update
    • Red Hat Enterprise Linux AppStream (v. 9) redis-6.2.20-1.el9_6, redis-devel-6.2.20-1.el9_6, redis-doc-6.2.20-1.el9_6
  • RHSA-2025:19238 Released 2025-10-29 · Red Hat rating Important
    redis:6 security update
    • Red Hat Enterprise Linux AppStream (v. 8) redis-6.2.20-1.module+el8.10.0+23551+d4cd15d7.aarch64::redis:6, redis-6.2.20-1.module+el8.10.0+23551+d4cd15d7.ppc64le::redis:6, redis-6.2.20-1.module+el8.10.0+23551+d4cd15d7.s390x::redis:6 +7

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2025:19675, RHSA-2025:21936
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2025:19238
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2025:19237, RHSA-2025:19345, RHSA-2025:20926, RHSA-2025:20955, RHSA-2025:21916
Not affected: 13 products
  • Logging Subsystem for Red Hat OpenShift
  • Red Hat AI Inference Server
  • Red Hat Ansible Automation Platform 2
  • Red Hat Connectivity Link 1
  • Red Hat Developer Hub 1
  • Red Hat Discovery 1
  • Red Hat Discovery 2
  • Red Hat Enterprise Linux AI (RHEL AI)
  • Red Hat OpenShift AI (RHOAI)
  • Red Hat OpenShift Container Platform 4
  • Red Hat OpenStack Platform 13 (Queens)
  • Red Hat Quay 3
  • Red Hat Satellite 6

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-46818
  2. 2026-10-27 Affected versions changed · Red Hat

References

Patch 1

Advisory 1

Other 1

  • TI-2022-00463 Missing authorization in Debian redis KEVCVSS 3.1CRITICAL 10.0
  • TI-2025-31759 Redis Lua Use-After-Free may lead to remote code execution CVSS 3.1CRITICAL 10.0
  • TI-2023-18618 Heap overflow in COMMAND GETKEYS and ACL evaluation in Redis CVSS 3.1HIGH 8.8
  • TI-2024-20813 Lua library commands may lead to stack overflow and RCE in Redis CVSS 3.1HIGH 8.8
  • TI-2022-08647 Heap overflow issue with the Lua cjson library used by Redis CVSS 3.1HIGH 8.8
  • TI-2022-08549 Lua scripts can be manipulated to overcome ACL rules in Redis CVSS 3.1HIGH 7.8
See all 45 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences