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.

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Advisories
Source ID Title
Ubuntu USN Ubuntu USN USN-8581-1 libarchive vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

To mitigate this issue, avoid processing untrusted or unverified tar archives. Users should exercise caution when handling archives from unknown sources or those with unexpected content, as processing a specially crafted archive could trigger the vulnerability.

History

Wed, 15 Jul 2026 02:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-787

Mon, 13 Jul 2026 05:30:00 +0000

Type Values Removed Values Added
References

Sat, 11 Jul 2026 11:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-122
CWE-787

Fri, 10 Jul 2026 12:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 10 Jul 2026 12:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Low


Fri, 10 Jul 2026 10:15:00 +0000

Type Values Removed Values Added
Description 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.
Title Libarchive: heap overflow oob read while parsing a tar archive contains a pax extended header
First Time appeared Redhat
Redhat enterprise Linux
Redhat hummingbird
Redhat openshift
CPEs cpe:/a:redhat:hummingbird:1
cpe:/a:redhat:openshift:4
cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
Redhat hummingbird
Redhat openshift
References
Metrics cvssV3_1

{'score': 3.9, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:L'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-07-15T09:15:19.559Z

Reserved: 2026-07-08T07:04:37.243Z

Link: CVE-2026-15028

cve-icon Vulnrichment

Updated: 2026-07-10T12:10:38.879Z

cve-icon NVD

No data.

cve-icon Redhat

Severity : Low

Publid Date: 2026-07-08T10:10:00Z

Links: CVE-2026-15028 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-07-25T20:15:02Z

Weaknesses