DEBIAN-CVE-2026-4424

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Source
https://security-tracker.debian.org/tracker/CVE-2026-4424
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-4424.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-4424
Upstream
  • CVE-2026-4424
Published
2026-03-19T15:16:28.300Z
Modified
2026-03-20T09:00:15.352476Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Debian:11 / libarchive

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.4.3-2
3.4.3-2+deb11u1
3.4.3-2+deb11u2
3.4.3-2+deb11u3
3.5.2-1
3.6.0-1
3.6.2-1
3.7.2-1
3.7.2-1.1~exp1
3.7.2-1.1
3.7.2-2
3.7.2-2.1
3.7.4-1
3.7.4-1.1
3.7.4-2
3.7.4-3
3.7.4-4
3.8.4-1
3.8.5-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-4424.json"

Debian:12 / libarchive

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.6.2-1
3.6.2-1+deb12u1
3.6.2-1+deb12u2
3.6.2-1+deb12u3
3.7.2-1
3.7.2-1.1~exp1
3.7.2-1.1
3.7.2-2
3.7.2-2.1
3.7.4-1
3.7.4-1.1
3.7.4-2
3.7.4-3
3.7.4-4
3.8.4-1
3.8.5-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-4424.json"

Debian:13 / libarchive

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

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

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-4424.json"

Debian:14 / libarchive

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

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

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-4424.json"