Redis Cve-2025-49844: Use-After-Free May Lead to Remote Code Execution
Posted3 months agoActive3 months ago
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A use-after-free vulnerability (CVE-2025-49844) in Redis may lead to remote code execution, prompting discussion on its impact and mitigation strategies.
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Oct 7, 2025 at 5:33 AM EDT
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ID: 45501099Type: storyLast synced: 11/20/2025, 2:49:46 PM
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Also:
> Exploitation of this vulnerability requires an attacker to first gain authenticated access to your Redis instance.
The github issue has these workarounds: > An additional workaround to mitigate the problem 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.
I guess most people doesn't use the lua engine, so this is probably a good advice to disable even if upgrading to a non-vuln version of Redis.
As you see you can’t fault me for being consistent, can you?
https://news.ycombinator.com/item?id=45497027
Also: "As part of an ongoing effort by Redis and the Redis community to maintain Redis’ safety, security, and compliance posture, a security vulnerability in Redis has been identified and remediated in the versions indicated below." seems to be a bit strange given that this wasn't an effort led by Redis?