Red Hat Security Advisory: redis:7 security update
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.
AI Analysis
Technical Summary
This advisory covers four distinct vulnerabilities in Redis 7 related to its Lua scripting capabilities: CVE-2025-46817 involves integer overflow in Lua library commands potentially leading to remote code execution; CVE-2025-46818 allows authenticated users to execute Lua scripts as a different user; CVE-2025-46819 enables denial of service through specially crafted Lua scripts; and CVE-2025-49844 is a use-after-free vulnerability in Lua that may result in remote code execution. Red Hat has released updated Redis packages for Red Hat Enterprise Linux 9 to remediate these issues.
Potential Impact
The vulnerabilities collectively allow for potential remote code execution, privilege misuse by authenticated users, and denial of service conditions in Redis 7 deployments on affected Red Hat Enterprise Linux 9 systems. Successful exploitation could compromise system integrity and availability.
Mitigation Recommendations
Red Hat has released updated Redis packages (version 7.2.11-1.module+el9.7.0+23559+d075163a) for Red Hat Enterprise Linux 9 and its variants that address these vulnerabilities. Users should apply these official updates promptly following Red Hat's guidance at https://access.redhat.com/articles/11258. No additional mitigations are indicated by the vendor advisory.
Red Hat Security Advisory: redis:7 security update
Description
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.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This advisory covers four distinct vulnerabilities in Redis 7 related to its Lua scripting capabilities: CVE-2025-46817 involves integer overflow in Lua library commands potentially leading to remote code execution; CVE-2025-46818 allows authenticated users to execute Lua scripts as a different user; CVE-2025-46819 enables denial of service through specially crafted Lua scripts; and CVE-2025-49844 is a use-after-free vulnerability in Lua that may result in remote code execution. Red Hat has released updated Redis packages for Red Hat Enterprise Linux 9 to remediate these issues.
Potential Impact
The vulnerabilities collectively allow for potential remote code execution, privilege misuse by authenticated users, and denial of service conditions in Redis 7 deployments on affected Red Hat Enterprise Linux 9 systems. Successful exploitation could compromise system integrity and availability.
Mitigation Recommendations
Red Hat has released updated Redis packages (version 7.2.11-1.module+el9.7.0+23559+d075163a) for Red Hat Enterprise Linux 9 and its variants that address these vulnerabilities. Users should apply these official updates promptly following Red Hat's guidance at https://access.redhat.com/articles/11258. No additional mitigations are indicated by the vendor advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2025:20955
- Cve Count
- 4
- Additional Cves
- ["CVE-2025-46818","CVE-2025-46819","CVE-2025-49844"]
Threat ID: 6a419cad27e9c79719ab9de7
Added to database: 06/28/2026, 22:14:05 UTC
Last enriched: 07/12/2026, 10:58:19 UTC
Last updated: 09/10/2026, 19:36:50 UTC
Views: 58
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