High [CVE-2026-23631] Remote code execution via use-after-free in Lua scripting
This high-severity Red Hat Linux advisory covers CVE-2026-23631 affecting Red Hat Enterprise Linux 10.0 Extended Update Support, Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions, Red Hat Enterprise Linux 9.6 Extended Update Support.
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Summary
Remote code execution via use-after-free in Lua scripting. Red Hat rates this important (CVSS 8.8).
Weakness: CWE-416. Affected package(s): redis:7, valkey.
Resolved in Red Hat advisory RHSA-2026:26540 — update the affected packages (`sudo dnf update`).
Affected products named by the advisory: Red Hat Enterprise Linux 10.0 Extended Update Support; Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions; Red Hat Enterprise Linux 9.6 Extended Update Support; Red Hat Hardened Images.
- redis:7-9080020260521083756.9
- valkey-0:8.0.9-1.el10_2
- redis:7-9060020260602115714.9
- valkey-0:8.0.9-1.el10_0
- valkey-0:8.0.9-1.el9_8
- redis:7-9040020260625094332.9
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
- RHSA-2026:26540
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
Mitigation checklist
- Update the affected package(s) to the fixed version shipped in RHSA-2026:26540 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
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