Buffer overflow in Red Hat Enterprise Linux 10
CVE-2026-15028
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.9 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:L.
EPSS exploit prediction
EPSS: 0.002 (9.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 9th percentile — 9.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000
Affected products
Weakness classification (CWE)
References
- access.redhat.com/security/cve/CVE-2026-15028 (vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking)
- github.com/libarchive/libarchive/issues/3251
- github.com/libarchive/libarchive/pull/3253
- access.redhat.com/errata/RHSA-2026:38279 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:69553 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:79357 (vendor-advisory)
Frequently asked questions
- What is CVE-2026-15028?
- CVE-2026-15028 is a low-severity vulnerability in Red Hat Enterprise Linux 10, classified under Buffer Access with Incorrect Length Value. CVSS score: 3.9/10. Published 2026-07-10.
- How severe is CVE-2026-15028?
- Low severity. CVSS v3 base score is 3.9 out of 10.