Summary
Redis is an advanced key-value store. It is often referred to as a data-structure server since keys can contain strings, hashes, lists, sets, and sorted sets. For performance, Redis works with an in-memory data set. You can persist it either by dumping the data set to disk every once in a while, or by appending each command to a log.
Security Fix(es):
* redis: use-after-free in unblock client flow may allow remote code execution (CVE-2026-23479)
* redis: Remote code execution via use-after-free in Lua scripting (CVE-2026-23631)
* redis: RESTORE invalid memory access may allow remote code execution (CVE-2026-25243)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Fixed packages 1
| Release | Package | Fixed in |
|---|---|---|
| Rocky Linux · 9 | redis | 0:7.2.14-1.module+el9.8.0+40207+e2014501 |
Vulnerabilities 3
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High 7.7CVE-2026-23479 Public exploit
redis-server use-after-free in unblock client flow may allow remote code execution
Redis is an in-memory data structure store. In redis-server from 7.2.0 until 8.6.3, the unblock client flow does not handle an error return from `processCommandAndResetClient` when re-executing a blocked command. If a blocked client is evicted during this flo…
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High 7.7CVE-2026-25243 Public exploit
redis-server RESTORE invalid memory access may allow remote code execution
Redis is an in-memory data structure store. In versions of redis-server up to 8.6.3, the RESTORE command does not properly validate serialized values. An authenticated attacker with permission to execute RESTORE can supply a crafted serialized payload that tr…
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Medium 6.1CVE-2026-23631 Public exploit
redis-server Lua use-after-free may allow remote code execution
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 c…