CVE-2025-49844
CVE-2025-49844 · Redis Lua Use-After-Free may lead to remote code execution
This page contains facts from public vulnerability sources. Check the original advisory before updating.
This page shows selected source facts. See the linked advisories for the complete description and affected versions.
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.
CVSS 10.0 · Critical · EPSS 82.6% · Public exploit · Fix available
- Published
- Updated
Affected products and versions
redis
- Versions
- < 8.2.2: Affected
No fix published
redict Debian:14
- Versions
- 7.3.0+ds-1
- 7.3.0+ds-2
- 7.3.0+ds-3
- 7.3.0+ds-3~bpo12+1
- 7.3.1+ds-1
- 7.3.2+ds-1
- 7.3.2+ds-1~bpo12+1
- 7.3.5+ds-1
- 7.3.5+ds-1~bpo12+1
- 7.3.6+ds-1~bpo12+1
- 7.3.6+ds-1~bpo13+1
- Affected ranges
- ECOSYSTEM: < 7.3.6+ds-1
Update to 7.3.6+ds-1
redis Debian:12
- Versions
- 5:7.0.11-1
- 5:7.0.11-1+deb12u1
- 5:7.0.12-1
- 5:7.0.12-2
- 5:7.0.13-1
- 5:7.0.13-2
- 5:7.0.14-1
- 5:7.0.14-2
- 5:7.0.15-1~deb12u1
- 5:7.0.15-1~deb12u2
- 5:7.0.15-1~deb12u3
- 5:7.0.15-1~deb12u4
- 5:7.0.15-1~deb12u5
- Affected ranges
- ECOSYSTEM: < 5:7.0.15-1~deb12u6
Update to 5:7.0.15-1~deb12u6
redis Debian:13
- Versions
- 5:8.0.2-3
- Affected ranges
- ECOSYSTEM: < 5:8.0.2-3+deb13u1
Update to 5:8.0.2-3+deb13u1
redis Debian:14
- Versions
- 5:8.0.2-3
- Affected ranges
- ECOSYSTEM: < 5:8.0.4-1
Update to 5:8.0.4-1
valkey Debian:13
- Versions
- 8.1.1+dfsg1-3
- Affected ranges
- ECOSYSTEM: < 8.1.1+dfsg1-3+deb13u1
Update to 8.1.1+dfsg1-3+deb13u1
valkey Debian:14
- Versions
- 8.1.1+dfsg1-3
- Affected ranges
- ECOSYSTEM: < 8.1.4+dfsg1-1
Update to 8.1.4+dfsg1-1
lua5.1 Ubuntu:14.04:LTS
- Versions
- 5.1.5-5
- 5.1.5-5ubuntu0.1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
redis Ubuntu:Pro:14.04:LTS
- Versions
- 2:2.6.13-1
- 2:2.6.16-3
- 2:2.8.0-1
- 2:2.8.2-1
- 2:2.8.4-2
- 2:2.8.4-2ubuntu0.2
- 2:2.8.4-2ubuntu0.2+esm1
- 2:2.8.4-2ubuntu0.2+esm2
- 2:2.8.4-2ubuntu0.2+esm3
- 2:2.8.4-2ubuntu0.2+esm4
- Affected ranges
- ECOSYSTEM: < 2:2.8.4-2ubuntu0.2+esm5
Update to 2:2.8.4-2ubuntu0.2+esm5
redis Ubuntu:Pro:16.04:LTS
- Versions
- 2:3.0.3-3
- 2:3.0.5-1
- 2:3.0.5-2
- 2:3.0.5-3
- 2:3.0.5-4
- 2:3.0.6-1
- 2:3.0.6-1ubuntu0.2
- 2:3.0.6-1ubuntu0.3
- 2:3.0.6-1ubuntu0.4
- 2:3.0.6-1ubuntu0.4+esm1
- 2:3.0.6-1ubuntu0.4+esm2
- 2:3.0.6-1ubuntu0.4+esm3
- Affected ranges
- ECOSYSTEM: < 2:3.0.6-1ubuntu0.4+esm4
Update to 2:3.0.6-1ubuntu0.4+esm4
lua50 Ubuntu:16.04:LTS
- Versions
- 5.0.3-7
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
lua5.1 Ubuntu:18.04:LTS
- Versions
- 5.1.5-8.1build1
- 5.1.5-8.1build2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
lua50 Ubuntu:18.04:LTS
- Versions
- 5.0.3-8
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
redis Ubuntu:Pro:18.04:LTS
- Versions
- 4:4.0.1-7
- 4:4.0.2-6
- 4:4.0.2-9
- 5:4.0.5-1
- 5:4.0.6-1
- 5:4.0.6-2
- 5:4.0.7-1
- 5:4.0.8-1
- 5:4.0.8-2
- 5:4.0.9-1
- 5:4.0.9-1ubuntu0.1
- 5:4.0.9-1ubuntu0.2
- 5:4.0.9-1ubuntu0.2+esm2
- 5:4.0.9-1ubuntu0.2+esm3
- 5:4.0.9-1ubuntu0.2+esm4
- 5:4.0.9-1ubuntu0.2+esm5
- Affected ranges
- ECOSYSTEM: < 5:4.0.9-1ubuntu0.2+esm6
Update to 5:4.0.9-1ubuntu0.2+esm6
lua5.1 Ubuntu:Pro:20.04:LTS
- Versions
- 5.1.5-8.1build3
- 5.1.5-8.1build4
- Affected ranges
- ECOSYSTEM: < 5.1.5-8.1ubuntu0.20.04.1~esm1
Update to 5.1.5-8.1ubuntu0.20.04.1~esm1
lua50 Ubuntu:20.04:LTS
- Versions
- 5.0.3-8build1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
redis Ubuntu:Pro:20.04:LTS
- Versions
- 5:5.0.5-2build1
- 5:5.0.6-1
- 5:5.0.7-1
- 5:5.0.7-2
- 5:5.0.7-2ubuntu0.1~esm1
- 5:5.0.7-2ubuntu0.1
- 5:5.0.7-2ubuntu0.1+esm1
- 5:5.0.7-2ubuntu0.1+esm2
- 5:5.0.7-2ubuntu0.1+esm3
- Affected ranges
- ECOSYSTEM: < 5:5.0.7-2ubuntu0.1+esm4
Update to 5:5.0.7-2ubuntu0.1+esm4
lua5.1 Ubuntu:Pro:22.04:LTS
- Versions
- 5.1.5-8.1build4
- Affected ranges
- ECOSYSTEM: < 5.1.5-8.1ubuntu0.22.04.1~esm1
Update to 5.1.5-8.1ubuntu0.22.04.1~esm1
lua5.1 Ubuntu:24.04:LTS
- Versions
- 5.1.5-9
- 5.1.5-9build1
- 5.1.5-9build2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
redis Ubuntu:24.04:LTS
- Versions
- 5:7.0.12-1
- 5:7.0.14-1
- 5:7.0.14-2
- 5:7.0.15-1
- 5:7.0.15-1build1
- 5:7.0.15-1build2
- 5:7.0.15-1ubuntu0.24.04.1
- Affected ranges
- ECOSYSTEM: < 5:7.0.15-1ubuntu0.24.04.2
Update to 5:7.0.15-1ubuntu0.24.04.2
valkey Ubuntu:24.04:LTS
- Versions
- 7.2.5+dfsg1-2ubuntu4~24.04.1
- 7.2.7+dfsg1-0ubuntu0.24.04.1
- 7.2.8+dfsg1-0ubuntu0.24.04.1
- 7.2.8+dfsg1-0ubuntu0.24.04.2
- 7.2.8+dfsg1-0ubuntu0.24.04.3
- 7.2.10+dfsg1-0ubuntu0.1
- 7.2.11+dfsg1-0ubuntu0.1
- Affected ranges
- ECOSYSTEM: < 7.2.11+dfsg1-0ubuntu0.2
Update to 7.2.11+dfsg1-0ubuntu0.2
lua5.1 Ubuntu:25.10
- Versions
- 5.1.5-11
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
redict Ubuntu:25.10
- Versions
- 7.3.2+ds-1
- 7.3.5+ds-1
- Affected ranges
- ECOSYSTEM: < 7.3.5+ds-1ubuntu0.1
Update to 7.3.5+ds-1ubuntu0.1
redis Ubuntu:25.10
- Versions
- 5:7.0.15-3
- 5:7.0.15-3.1
- 5:8.0.2-3
- 5:8.0.2-3build1
- Affected ranges
- ECOSYSTEM: < 5:8.0.2-3ubuntu0.25.10.1
Update to 5:8.0.2-3ubuntu0.25.10.1
Original sources
- 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
- https://nvd.nist.gov/vuln/detail/CVE-2025-49844