DEBIAN-CVE-2026-4111

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Source
https://security-tracker.debian.org/tracker/CVE-2026-4111
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-4111.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-4111
Upstream
Published
2026-03-13T19:55:13.917Z
Modified
2026-03-14T17:00:30.168102Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

A flaw was identified in the RAR5 archive decompression logic of the libarchive library, specifically within the archivereaddata() processing path. When a specially crafted RAR5 archive is processed, the decompression routine may enter a state where internal logic prevents forward progress. This condition results in an infinite loop that continuously consumes CPU resources. Because the archive passes checksum validation and appears structurally valid, affected applications cannot detect the issue before processing. This can allow attackers to cause persistent denial-of-service conditions in services that automatically process archives.

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-2026-4111.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-2026-4111.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-2026-4111.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-2026-4111.json"