Unrated severityNVD Advisory· Published Oct 3, 2025· Updated Mar 20, 2026
Redis Lua Use-After-Free may lead to remote code execution
CVE-2025-49844
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
46- osv-coords44 versionspkg:apk/chainguard/py3.10-redispkg:apk/chainguard/py3.11-redispkg:apk/chainguard/py3.12-redispkg:apk/chainguard/py3.13-redispkg:apk/chainguard/py3-redispkg:bitnami/keydbpkg:bitnami/redispkg:bitnami/valkeypkg:rpm/almalinux/redispkg:rpm/almalinux/redis-develpkg:rpm/almalinux/redis-docpkg:rpm/almalinux/valkeypkg:rpm/almalinux/valkey-develpkg:rpm/opensuse/redis7&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/redis&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/redis&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/redis&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/valkey&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/valkey&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/valkey&distro=openSUSE%20Tumbleweedpkg:rpm/suse/redis7&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-ESPOSpkg:rpm/suse/redis7&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-LTSSpkg:rpm/suse/redis7&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP6pkg:rpm/suse/redis7&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP5-LTSSpkg:rpm/suse/redis7&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP5pkg:rpm/suse/redis&distro=SUSE%20Enterprise%20Storage%207.1pkg:rpm/suse/redis&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-LTSSpkg:rpm/suse/redis&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOSpkg:rpm/suse/redis&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSSpkg:rpm/suse/redis&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-ESPOSpkg:rpm/suse/redis&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-LTSSpkg:rpm/suse/redis&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP6pkg:rpm/suse/redis&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP3-LTSSpkg:rpm/suse/redis&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSSpkg:rpm/suse/redis&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP5-LTSSpkg:rpm/suse/redis&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP3pkg:rpm/suse/redis&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP4pkg:rpm/suse/redis&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP5pkg:rpm/suse/redis&distro=SUSE%20Manager%20Proxy%20LTS%204.3pkg:rpm/suse/redis&distro=SUSE%20Manager%20Server%20LTS%204.3pkg:rpm/suse/valkey&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP6pkg:rpm/suse/valkey&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP7pkg:rpm/suse/valkey&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg:rpm/suse/valkey&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0
< 0+ 43 more
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 6.2.20
- (no CPE)range: < 6.2.20
- (no CPE)range: < 7.2.11
- (no CPE)range: < 6.2.20-1.el9_6
- (no CPE)range: < 6.2.20-1.el9_6
- (no CPE)range: < 6.2.20-1.el9_6
- (no CPE)range: < 8.0.6-1.el10_0
- (no CPE)range: < 8.0.6-1.el10_0
- (no CPE)range: < 7.0.8-150600.8.19.1
- (no CPE)range: < 7.2.4-150600.3.18.1
- (no CPE)range: < 8.2.3-bp160.1.1
- (no CPE)range: < 8.2.2-1.1
- (no CPE)range: < 8.0.6-150600.13.17.1
- (no CPE)range: < 8.0.6-160000.1.1
- (no CPE)range: < 8.1.4-1.1
- (no CPE)range: < 7.0.8-150500.3.24.1
- (no CPE)range: < 7.0.8-150500.3.24.1
- (no CPE)range: < 7.0.8-150600.8.19.1
- (no CPE)range: < 7.0.8-150500.3.24.1
- (no CPE)range: < 7.0.8-150500.3.24.1
- (no CPE)range: < 6.0.14-150200.6.43.1
- (no CPE)range: < 6.0.14-150200.6.43.1
- (no CPE)range: < 6.2.6-150400.3.40.1
- (no CPE)range: < 6.2.6-150400.3.40.1
- (no CPE)range: < 6.2.6-150400.3.40.1
- (no CPE)range: < 6.2.6-150400.3.40.1
- (no CPE)range: < 7.2.4-150600.3.18.1
- (no CPE)range: < 6.0.14-150200.6.43.1
- (no CPE)range: < 6.2.6-150400.3.40.1
- (no CPE)range: < 6.2.6-150400.3.40.1
- (no CPE)range: < 6.0.14-150200.6.43.1
- (no CPE)range: < 6.2.6-150400.3.40.1
- (no CPE)range: < 6.2.6-150400.3.40.1
- (no CPE)range: < 6.2.6-150400.3.40.1
- (no CPE)range: < 6.2.6-150400.3.40.1
- (no CPE)range: < 8.0.6-150600.13.17.1
- (no CPE)range: < 8.0.6-150700.3.11.1
- (no CPE)range: < 8.0.6-160000.1.1
- (no CPE)range: < 8.0.6-160000.1.1
Patches
Vulnerability mechanics
References
3- github.com/redis/redis/commit/d5728cb5795c966c5b5b1e0f0ac576a7e69af539mitrex_refsource_MISC
- github.com/redis/redis/releases/tag/8.2.2mitrex_refsource_MISC
- github.com/redis/redis/security/advisories/GHSA-4789-qfc9-5f9qmitrex_refsource_CONFIRM
News mentions
3- GenAI Is Both Hunter and Hunted at Pwn2Own Berlin 2026Trend Micro Research · Jun 10, 2026
- What’s in the container? Analyzing vulnerabilities, risks and protection with Kaspersky Container Security and the KIRA AI assistantSecurelist · May 29, 2026
- Russian Threat Groups Use RDP, VPN, Supply Chain Attacks, and Social Engineering for Initial AccessCyber Security News · May 22, 2026