Heap Overflow Vulnerability in libarchive Affects Multiple Systems
CVE-2026-15028

3.9LOW

Key Information:

Vendor

Red Hat
Status
Red Hat Hardened Images
Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Vendor
CVE Published:
10 July 2026

What is CVE-2026-15028?

A vulnerability has been identified in libarchive where a specially crafted tar archive can trigger a heap overflow. The issue arises during the parsing of a PAX extended header that contains a malformed SUN.holesdata sparse-file attribute. If exploited, this flaw could lead to a denial of service, rendering the affected system unavailable, and may also enable an attacker to execute arbitrary code, potentially gaining full control over the system.

Affected Version(s)

Red Hat Hardened Images 3.8.8-2.1.hum1

References

https://access.redhat.com/errata/RHSA-2026:38279
vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-15028
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2497970
issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:
3.9
Severity:
LOW
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.