CVE-2026-14164 - High Severity Vulnerability
Vulnerable Library - libarchivev3.8.5
Multi-format archive and compression library
Library home page: https://github.com/libarchive/libarchive.git
Found in base branches: stable/4.0, master
Vulnerable Source Files (1)
/contrib/libarchive/libarchive/archive_read_support_format_rar5.c
Vulnerability Details
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.
Publish Date: 2026-06-30
URL: CVE-2026-14164
CVSS 3 Score Details (7.5)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: None
- Integrity Impact: None
- Availability Impact: High
For more information on CVSS3 Scores, click here.
Suggested Fix
Type: Upgrade version
Release Date: 2026-06-30
Fix Resolution: https://github.com/libarchive/libarchive.git - v3.8.8
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CVE-2026-14164 - High Severity Vulnerability
Multi-format archive and compression library
Library home page: https://github.com/libarchive/libarchive.git
Found in base branches: stable/4.0, master
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.
Publish Date: 2026-06-30
URL: CVE-2026-14164
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: None
- Integrity Impact: None
- Availability Impact: High
For more information on CVSS3 Scores, click here.Type: Upgrade version
Release Date: 2026-06-30
Fix Resolution: https://github.com/libarchive/libarchive.git - v3.8.8
Step up your Open Source Security Game with Mend here