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High RLSA-2025:19238 4 CVEs

Important: redis:6 security update

Published Nov 29, 2025 · Updated Nov 29, 2025

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: Lua library commands may lead to integer overflow and potential RCE (CVE-2025-46817)

* Redis: Redis: Authenticated users can execute LUA scripts as a different user (CVE-2025-46818)

* Redis: Redis is vulnerable to DoS via specially crafted LUA scripts (CVE-2025-46819)

* Redis: Redis Lua Use-After-Free may lead to remote code execution (CVE-2025-49844)

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

ReleasePackageFixed in
Rocky Linux · 8 redis 0:6.2.20-1.module+el8.10.0+2081+450a296c

Vulnerabilities 4

  • Critical 10.0
    CVE-2025-49844 Public exploit Scanner template EPSS 83%

    Redis Lua Use-After-Free may lead to remote code execution

    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 exe…

  • High 7.0
    CVE-2025-46817 Public exploit Scanner template

    Lua library commands may lead to integer overflow and potential RCE

    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 cause an integer overflow and potentially lead to remote code execution The problem exists in all …

  • Medium 6.3
    CVE-2025-46819 Public exploit Scanner template

    Redis is vulnerable to DoS via specially crafted LUA scripts

    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 read out-of-bound data or crash the server and subsequent denial of service. The problem exists in…

  • Medium 6.0
    CVE-2025-46818 Public exploit Scanner template

    Redis: Authenticated users can execute LUA scripts as a different user

    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 different LUA objects and potentially run their own code in the context of another user…

References

  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2401258
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2401292
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2401322
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2401324