A flaw was found in libarchive.
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.
Assessment
- CVSS
- 3.9 (v3.1)
- Severity
- Low
- EPSS
- 0.2% chance of exploitation in the next 30 days
- Known exploited
- Not listed in CISA KEV
- Exploit availability
- Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
- Published
- 10 July 2026
- Last updated
- 2 November 2026
- Affected
- Red Hat · Red Hat Cost Management On-Premise 1 · Red Hat Enterprise Linux 10 · Red Hat Hardened Images
- Assigner
- redhat
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:L
At the source
References
- https://access.redhat.com/errata/RHSA-2026:38279
- https://access.redhat.com/errata/RHSA-2026:69553
- https://access.redhat.com/errata/RHSA-2026:79357
- https://access.redhat.com/security/cve/CVE-2026-15028
- https://bugzilla.redhat.com/show_bug.cgi?id=2497970
- https://github.com/libarchive/libarchive/issues/3251
- https://github.com/libarchive/libarchive/pull/3253
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