DEBIAN-CVE-2026-4426

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Source
https://security-tracker.debian.org/tracker/CVE-2026-4426
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-4426.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-4426
Upstream
  • CVE-2026-4426
Published
2026-03-19T15:16:28Z
Modified
2026-09-14T17:03:35Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
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

Affected packages

Debian:12 / libarchive

Package

Name
libarchive
Purl
pkg:deb/debian/libarchive?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
3.6.2-1+deb12u4

Affected versions

3.*
3.6.2-1
3.6.2-1+deb12u1
3.6.2-1+deb12u2
3.6.2-1+deb12u3

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-4426.json"

Debian:13 / libarchive

Package

Name
libarchive
Purl
pkg:deb/debian/libarchive?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
3.7.4-4+deb13u1

Affected versions

3.*
3.7.4-4

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-4426.json"

Debian:14 / libarchive

Package

Name
libarchive
Purl
pkg:deb/debian/libarchive?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
3.8.7-1

Affected versions

3.*
3.7.4-4
3.8.4-1
3.8.5-1
3.8.6-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-4426.json"