CVE-2026-4424

Published Mar 19, 2026

Last updated 4 days ago

CVSS high 7.5

Overview

Description
A flaw was found in libarchive. This heap out-of-bounds read vulnerability exists in the RAR archive processing logic due to improper validation of the LZSS sliding window size after transitions between compression methods. A remote attacker can exploit this by providing a specially crafted RAR archive, leading to the disclosure of sensitive heap memory information without requiring authentication or user interaction.
Source
secalert@redhat.com
NVD status
Modified
Products
libarchive, hardened_images, openshift_container_platform, openshift_container_platform_for_arm64, openshift_container_platform_for_power, enterprise_linux, enterprise_linux_server_aus

Risk scores

CVSS 3.1

Type
Secondary
Base score
7.5
Impact score
3.6
Exploitability score
3.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Severity
HIGH

Weaknesses

secalert@redhat.com
CWE-125

Social media

Hype score
Not currently trending

Configurations

Related CVEs

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References

Sources include official advisories and independent security research.