Redis is an in-memory data structure store. In all versions of redis-server with Lua scripting, an authenticated attacker can exploit the master-replica synchronization mechanism to trigger a use-after-free on replicas where replica-read-only is disabled or can be disabled, which may lead to remote code execution. A workaround is to prevent users from executing Lua scripts or avoid using replicas where replica-read-only is disabled. This is patched in version 8.6.3.
CVSS Details
- CVSS 4.0 Base Score: 6.1 (MEDIUM)
- CVSS 4.0 Vector: (CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X)
- CVSS 3.1 Base Score: 8.1
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade valkeyUpgrade redis-docUpgrade redisUpgrade redis-develUpgrade valkey-devel | Jun 16, 2026 | Jun 11, 2026 |
| Alpine Linux | — | Upgrade valkeyUpgrade redis | May 15, 2026 | May 5, 2026 |
| Amazon_linux_2023 | — | Upgrade valkey-develUpgrade valkeyUpgrade valkey-debugsourceUpgrade valkey-debuginfo | May 28, 2026 | May 5, 2026 |
| Debian | — | Upgrade redis | Jul 15, 2026 | Jul 15, 2026 |
| Redhat_linux | — | Upgrade redisUpgrade redis-develUpgrade valkey-debuginfoUpgrade redis-docUpgrade valkeyUpgrade valkey-debugsourceUpgrade redis-debugsourceUpgrade redis-debuginfoUpgrade valkey-devel | Jun 17, 2026 | May 5, 2026 |
| Redislabs Redis | — | Upgrade RedisLabs Redis to version 8.6.3 | May 8, 2026 | May 5, 2026 |
| Rocky_linux | — | Upgrade redisUpgrade valkey-develUpgrade redis-develUpgrade redis-debuginfoUpgrade redis-debugsourceUpgrade valkey-debuginfoUpgrade valkey-debugsourceUpgrade valkey | Jun 17, 2026 | Jun 13, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jun 29, 2026 | May 5, 2026 |
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