CVE-2021-42613: Fedoraproject Fedora

High severity, CVSS 7.8. EPSS: 0.9% chance of exploitation in the next 30 days.

A double free in cleanup_index in index.c in Halibut 1.2 allows an attacker to cause a denial of service or possibly have other unspecified impact via a crafted text document.

Affected products

• Fedoraproject Fedora: version 35 only
• Halibut Project Halibut: version 1.2 only

Published 2022-05-24. Last modified 2026-06-17.