Redis Lua Use-After-Free may lead to remote code execution (redis redis)
At a glance
- Source
- NVD
- EPSS
- EPSS 82.64 % · percentile 100 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- GitHub_M
- NVD status
- Modified
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 the garbage collector, trigger a use-after-free and potentially lead to remote code execution. The problem exists in all versions of Redis with Lua scripting. This issue is fixed in version 8.2.2. To workaround this issue without patching the redis-server executable is to prevent users from executing Lua scripts. This can be done using ACL to restrict EVAL and EVALSHA commands.
Weaknesses (CWE)
- CWE-416 — Use After Free
References
- https://github.com/redis/redis/security/advisories/GHSA-4789-qfc9-5f9q
- https://github.com/redis/redis/commit/d5728cb5795c966c5b5b1e0f0ac576a7e69af539
- https://github.com/redis/redis/releases/tag/8.2.2
- https://github.com/lastvocher/redis-CVE-2025-49844
- http://www.openwall.com/lists/oss-security/2025/10/07/2
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | CRITICAL 10.0 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H | GitHub_M |
| CVSS 3.1 | CRITICAL 9.9 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H | NVD · security-advisories@github.com (Secondary) |
| CVSS 3.1 | CRITICAL 9.9 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2025-33178
- GCVE · GCVE-0-2025-49844
CERT-FR advisories
- CERTFR-2026-AVI-0627 — Multiples vulnérabilités dans les produits Splunk · cert.ssi.gouv.fr
- CERTFR-2025-AVI-1115 — Vulnérabilité dans Trend Micro Apex One · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0935 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0899 — Multiples vulnérabilités dans les produits Microsoft · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:*< 6.2.20cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:*≥ 7.0 < 7.2.11cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:*≥ 7.4.0 < 7.4.6cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:*≥ 8.0.0 < 8.0.4cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:*≥ 8.2.0 < 8.2.2cpe:2.3:a:lfprojects:valkey:*:*:*:*:*:*:*:*< 7.2.11cpe:2.3:a:lfprojects:valkey:*:*:*:*:*:*:*:*≥ 8.0.0 < 8.0.6cpe:2.3:a:lfprojects:valkey:*:*:*:*:*:*:*:*≥ 8.1.0 < 8.1.4
Affected products
| Product | Versions |
|---|---|
| redis · redis | affected < 8.2.2 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |