CVE-2026-15028 (Low) detected in libarchivev3.8.5

[mend-bolt-for-github]

CVE-2026-15028 - Low Severity Vulnerability

Vulnerable Library - libarchivev3.8.5

Multi-format archive and compression library

Library home page: https://github.com/libarchive/libarchive.git

Found in HEAD commit: 816463d989cc5839c1cca2efb5bf2503408507fb

Found in base branches: stable/4.0, master

Vulnerable Source Files (1)

/contrib/libarchive/libarchive/archive_read_support_format_tar.c

Vulnerability Details

A flaw was found in libarchive. This vulnerability allows a remote attacker to trigger a heap overflow by providing a specially crafted tar archive. The issue occurs during the parsing of a PAX extended header containing a malformed SUN.holesdata sparse-file attribute. Successful exploitation could lead to a denial of service, making the system unavailable, or potentially allow for arbitrary code execution, giving the attacker control over the affected system.

Publish Date: 2026-07-10

URL: CVE-2026-15028

CVSS 3 Score Details (3.9)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Local
  • Attack Complexity: Low
  • Privileges Required: Low
  • User Interaction: Required
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: Low
  • Integrity Impact: None
  • Availability Impact: Low

For more information on CVSS3 Scores, click here.

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