Medium5.3Red Hat & Ubuntu Linux

Denial of Service via buffer overflow in index decoding

CVE-2026-34743 Published Apr 2, 2026

CVE-2026-34743

Affected products & platforms

Red Hat & Ubuntu LinuxUnclassified

Summary

Denial of Service via buffer overflow in index decoding. Red Hat rates this moderate (CVSS 5.3). Weakness: CWE-131. Affected package(s): xz-main. Resolved in Red Hat advisory RHSA-2026:7647 — update the affected packages (`sudo dnf update`).

Affected versions

xz-main-5.8.3-1.1.hum1

Official advisory · high-confidence parse· fetched 6 hours ago·verify at source

Fixed versions

RHSA-2026:7647

Official advisory · high-confidence parse· fetched 6 hours ago·verify at source

Mitigation checklist

Recommended fix / mitigation

Update the affected package(s) to the fixed version shipped in RHSA-2026:7647 (`sudo dnf update` / `yum update`).

Official advisory · high-confidence parse· fetched 6 hours ago·verify at source

Discussion(0)

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