AZL-80400

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Import Source

https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-80400.json

JSON Data

https://api.osv.dev/v1/vulns/AZL-80400

Upstream

CVE-2026-4426

Published

2026-03-19T15:16:28Z

Modified

2026-09-05T05:27:51Z

Summary

CVE-2026-4426 affecting package libarchive for versions less than 3.7.7-6

Details

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.

References

https://nvd.nist.gov/vuln/detail/CVE-2026-4426

Affected packages

Azure Linux:3 / libarchive

Package

Name: libarchive
Purl: pkg:rpm/azure-linux/libarchive

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

3.7.7-6

Database specific

source

"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-80400.json"