CVE-2026-15028
What it is
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.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account, but needs a user to act. Limited direct impact.
- Exploit odds
- 0.2% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Details
- Published
- Last modified
- Exploit probability
- 0.2% · EPSS, next 30 days
- Weakness
- CWE-805
- Record status
- Awaiting Analysis
Attack profile CVSS 3.1 · 3.9
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- None
- Availability
- Low
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:L
Fix and advisories
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