CVE-2026-44266.5MediumCWE-1335

CVE-2026-4426: Libarchive: denial of service via malformed iso file processing

Red Hat · Red Hat Hardened Images

Vendor fix available · Affected: Red Hat Hardened Images · Exploitation: unlikely (under 1%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

0.3%probability of exploitation in the next 30 days

30th percentile

050100

Higher than 30% of scored CVEs

6.5MediumCVSS 3.1

LowMediumHighCrit.

DescriptionCVE.org

A flaw was found in libarchive. An Undefined Behavior vulnerability exists in the zisofs decompression logic, caused by improper validation of a field (`pz_log2_bs`) read from ISO9660 Rock Ridge extensions. A remote attacker can exploit this by supplying a specially crafted ISO file. This can lead to incorrect memory allocation and potential application crashes, resulting in a denial-of-service (DoS) condition.

Affected products20

From the CVE record. A product or version that is not listed is unknown, not unaffected.

Red Hat · Red Hat Hardened ImagesVersions not stated
Red Hat · Red Hat Enterprise Linux 10Versions not stated
Red Hat · Red Hat Enterprise Linux 6Versions not stated
Red Hat · Red Hat Enterprise Linux 7Versions not stated
Red Hat · Red Hat Enterprise Linux 8Versions not stated
Red Hat · Red Hat Enterprise Linux 9Versions not stated
Red Hat · Red Hat OpenShift AI (RHOAI)Versions not stated
Red Hat · Red Hat OpenShift AI (RHOAI)Versions not stated
Red Hat · Red Hat OpenShift AI (RHOAI)Versions not stated
Red Hat · Red Hat OpenShift AI (RHOAI)Versions not stated
Red Hat · Red Hat OpenShift AI (RHOAI)Versions not stated
Red Hat · Red Hat OpenShift AI (RHOAI)Versions not stated
Red Hat · Red Hat OpenShift AI (RHOAI)Versions not stated
Red Hat · Red Hat OpenShift AI (RHOAI)Versions not stated
Red Hat · Red Hat OpenShift AI (RHOAI)Versions not stated
Red Hat · Red Hat OpenShift AI (RHOAI)Versions not stated
Red Hat · Red Hat OpenShift AI (RHOAI)Versions not stated
Red Hat · Red Hat OpenShift AI (RHOAI)Versions not stated
Red Hat · Red Hat OpenShift AI (RHOAI)Versions not stated
Red Hat · Red Hat OpenShift AI (RHOAI)Versions not stated

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas

Exploitation: Unlikely (under 1%). EPSS under 1%, or no score yet.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Incorrect Bitwise Shift of Integer · Other weaknesses
Vendor: Red Hat
Published: March 2026
Band: Unlikely (under 1%), March 2026

CoverageNo articles yet

No CyberSIXT article names CVE-2026-4426 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.