Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Libarchive | Libarchive | - |
| Redhat | Hardened Images | - |
| Redhat | Openshift Container Platform | 4.0 |
| Redhat | Openshift Container Platform For Arm64 | 4.16 |
| Redhat | Openshift Container Platform For Power | 4.16 |
| Redhat | Enterprise Linux | 6.0 |
| Redhat | Enterprise Linux Server Aus | 8.2 |
Related Weaknesses (CWE)
References
- https://access.redhat.com/errata/RHSA-2026:10065Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:10097Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:11768Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:12071
- https://access.redhat.com/errata/RHSA-2026:12274
- https://access.redhat.com/errata/RHSA-2026:13812
- https://access.redhat.com/errata/RHSA-2026:14773
- https://access.redhat.com/errata/RHSA-2026:14937
- https://access.redhat.com/errata/RHSA-2026:15087
- https://access.redhat.com/errata/RHSA-2026:16008
- https://access.redhat.com/errata/RHSA-2026:16009
- https://access.redhat.com/errata/RHSA-2026:16030
- https://access.redhat.com/errata/RHSA-2026:16174
- https://access.redhat.com/errata/RHSA-2026:17596
- https://access.redhat.com/errata/RHSA-2026:19724
FAQ
What is CVE-2026-4424?
CVE-2026-4424 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 betwe...
How severe is CVE-2026-4424?
CVE-2026-4424 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-4424?
Check the references section above for vendor advisories and patch information. Affected products include: Libarchive Libarchive, Redhat Hardened Images, Redhat Openshift Container Platform, Redhat Openshift Container Platform For Arm64, Redhat Openshift Container Platform For Power.