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A double free issue has been identified in libarchive's RAR5 reader.

0
Unknown
Vulnerabilitygcveosvubuntu-cve-2026-14164ubuntu-pro-20-04-ltsubuntu-22-04-ltsubuntu-24-04-ltsubuntu-25-10ubuntu-26-04-lts
Published: 06/30/2026 (06/30/2026, 07:16:00 UTC)
Source: GCVE Database
Product: libarchive

Description

A double free issue has been identified in libarchive's RAR5 reader. During parsing of a specially crafted RAR5 archive, the filtered_buf pointer may remain stale after being freed during unpacking state reinitialization. Subsequent processing of another archive entry can trigger a second free of the same memory region, resulting in a double-free condition. Successful exploitation may cause applications using the vulnerable libarchive API to terminate unexpectedly, leading to a denial of service.

CVSS v3.1

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected software

Ubuntu:Pro:20.04:LTSmore threats →ghsa
libarchive
pkg:deb/ubuntu/[email protected]+esm3?arch=source&distro=esm-infra/focal
Affected versions
=3.4.0-1=3.4.0-1build1=3.4.0-1ubuntu2=3.4.0-2ubuntu1=3.4.0-2ubuntu1.1=3.4.0-2ubuntu1.2=3.4.0-2ubuntu1.3=3.4.0-2ubuntu1.4=3.4.0-2ubuntu1.5=3.4.0-2ubuntu1.5+esm1=3.4.0-2ubuntu1.5+esm2=3.4.0-2ubuntu1.5+esm3
Ubuntu:22.04:LTSmore threats →ghsa
libarchive
pkg:deb/ubuntu/[email protected]?arch=source&distro=jammy
Affected versions
=3.4.3-2=3.4.3-2build1=3.5.2-1=3.5.2-1ubuntu1=3.6.0-1ubuntu1=3.6.0-1ubuntu1.1=3.6.0-1ubuntu1.2=3.6.0-1ubuntu1.3=3.6.0-1ubuntu1.4=3.6.0-1ubuntu1.5=3.6.0-1ubuntu1.6=3.6.0-1ubuntu1.7=3.6.0-1ubuntu1.8
Ubuntu:24.04:LTSmore threats →ghsa
libarchive
pkg:deb/ubuntu/[email protected]?arch=source&distro=noble
Affected versions
=3.6.2-1ubuntu1=3.7.2-1ubuntu1=3.7.2-1ubuntu2=3.7.2-1.1ubuntu2=3.7.2-2=3.7.2-2ubuntu0.1=3.7.2-2ubuntu0.2=3.7.2-2ubuntu0.3=3.7.2-2ubuntu0.4=3.7.2-2ubuntu0.5=3.7.2-2ubuntu0.6=3.7.2-2ubuntu0.7=3.7.2-2ubuntu0.8
Ubuntu:25.10more threats →ghsa
libarchive
pkg:deb/ubuntu/[email protected]?arch=source&distro=questing
Affected versions
=3.7.7-0ubuntu2=3.7.7-0ubuntu2.1=3.7.7-0ubuntu2.2=3.7.7-0ubuntu3=3.7.7-0ubuntu3.1=3.7.7-0ubuntu3.2
Ubuntu:26.04:LTSmore threats →ghsa
libarchive
pkg:deb/ubuntu/[email protected]?arch=source&distro=resolute
Affected versions
=3.7.7-0ubuntu3=3.8.5-1ubuntu1=3.8.5-1ubuntu2=3.8.5-1ubuntu2.1=3.8.5-1ubuntu2.2

Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.

Technical Details

Gcve Source
db.gcve.eu
Osv Id
UBUNTU-CVE-2026-14164
Osv Schema Version
1.7.0
Aliases
[]
Ecosystems
["Ubuntu:Pro:20.04:LTS","Ubuntu:22.04:LTS","Ubuntu:24.04:LTS","Ubuntu:25.10","Ubuntu:26.04:LTS"]
Database Specific Severity
null
Cvss Version
3.1

Threat ID: 6a600ab19c2644c7f8fe1c82

Added to database: 07/22/2026, 00:11:29 UTC

Last updated: 07/22/2026, 00:11:29 UTC

Views: 1

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