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High8.1Vendor: LowRed Hat Linux

High [CVE-2026-0861] Integer overflow in memalign leads to heap corruption

This high-severity Red Hat Linux advisory covers CVE-2026-0861 affecting Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 1, glibc-main.

CVE-2026-0861 Published Jan 14, 2026
CVE-2026-0861
Affected products & platforms
Red Hat LinuxUnclassified
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Summary

Integer overflow in memalign leads to heap corruption. Red Hat rates this low (CVSS 8.1).

Weakness: CWE-190. Affected package(s): glibc-main, costmanagement/costmanagement-metrics-rhel9-operator:1770836349, insights-proxy/insights-proxy-container-rhel9:1773685509, rhui5/rhua-rhel9:1773670137, rhui5/cds-rhel9:1773670073, rhui5/haproxy-rhel9:1773672059.

Resolved in Red Hat advisory RHSA-2026:3228 — update the affected packages (`sudo dnf update`).

Affected products named by the advisory: Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 1.

Affected versions
  • glibc-main-2.42-11.1.hum1
  • costmanagement/costmanagement-metrics-rhel9-operator:1770836349
  • insights-proxy/insights-proxy-container-rhel9:1773685509
  • rhui5/rhua-rhel9:1773670137
  • rhui5/cds-rhel9:1773670073
  • rhui5/haproxy-rhel9:1773672059
  • rhceph/rhceph-8-rhel9:1774002867
  • rhui5/installer-rhel9:1773668803
  • glibc-0:2.34-231.el9_7.10
  • discovery/discovery-server-rhel9:1773273243
  • glibc-0:2.39-58.el10_1.7
  • discovery/discovery-ui-rhel9:1773273070

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

Fixed versions
  • RHSA-2026:3228

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-2026:3228 (`sudo dnf update` / `yum update`).

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

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