Fedora 41: Critical Valkey Remote Code Execution Flaw CVE-2025-49844

Valkey 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.

You can run atomic operations on these types, like appending to a string;

incrementing the value in a hash; pushing to a list; computing set

intersection, union and difference; or getting the member with highest

ranking in a sorted set.

In order to achieve its outstanding performance, Valkey works with an

in-memory dataset. Depending on your use case, you can persist it either

by dumping the dataset to disk every once in a while, or by appending

each command to a log.

Valkey also supports trivial-to-setup master-slave replication, with very

fast non-blocking first synchronization, auto-reconnection on net split

and so forth.

Other features include Transactions, Pub/Sub, Lua scripting, Keys with a

limited time-to-live, and configuration settings to make Valkey behave like

a cache.

You can use Valkey from most programming languages also.

Valkey 8.0.6 - Released Fri 03 October 2025 Upgrade urgency SECURITY: This release includes security fixes we recommend you apply as soon as possible. Security fixes CVE-2025-49844 A Lua script may lead to remote code execution CVE-2025-46817 A Lua script may lead to integer overflow and potential RCE CVE-2025-46818 A Lua script can be executed in the context of another user CVE-2025-46819 LUA out-of-bound read Bug fixes Fix accounting for dual channel RDB bytes in replication stats (#2616) Minor fix for dual rdb channel connection conn error log (#2658) Fix unsigned difference expression compared to zero (#2101) Valkey 8.0.5 - Released Thu 22 Aug 2025 Upgrade urgency SECURITY: This release includes security fixes we recommend you apply as soon as possible. Bug fixes Fix clients remaining blocked when reprocessing commands after certain blocking operations (#2109) Fix a memory corruption issue in the sharded pub/sub unsubscribe logic (#2137) Fix potential me...