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High8.8Red Hat Linux

High [CVE-2026-25243] RESTORE invalid memory access may allow remote code execution

This high-severity Red Hat Linux advisory covers CVE-2026-25243 affecting Red Hat Enterprise Linux 10.0 Extended Update Support, Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On.

CVE-2026-25243 Published May 5, 2026
CVE-2026-25243
Affected products & platforms
Red Hat LinuxUnclassified
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Summary

RESTORE invalid memory access may allow remote code execution. Red Hat rates this important (CVSS 8.8).

Weakness: CWE-122. Affected package(s): redis, valkey, redis:6, redis:7.

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 8.4 Advanced Mission Critical Update Support; Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On; Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support; and 7 more.

Affected versions
  • redis-0:6.2.22-1.el9_6
  • valkey-0:8.0.9-1.el10_2
  • valkey-0:8.0.9-1.el10_0
  • redis:6-8040020260618162855.522a0ee4
  • redis:6-8060020260623095617.ad008a3a
  • redis:7-9040020260618054637.9
  • valkey-0:8.0.9-1.el9_8
  • redis:7-9080020260521083756.9
  • redis-0:6.2.7-1.el9_4.6
  • redis-0:6.2.7-1.el9_2.6
  • redis:7-9060020260602115714.9
  • redis:6-8100020260522105353.489197e6

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Fixed versions
  • RHSA-2026:26540

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Mitigation checklist

Recommended fix / mitigation
  • 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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