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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | — | — |
| Red Hat | Red Hat Cost Management On-Premise 1 | — | — |
| Red Hat | Red Hat Hardened Images | — | — |
| Red Hat | Red Hat Enterprise Linux 6 | — | — |
| Red Hat | Red Hat Enterprise Linux 7 | — | — |
| Red Hat | Red Hat Enterprise Linux 8 | — | — |
| Red Hat | Red Hat Enterprise Linux 9 | — | — |
| Red Hat | Red Hat OpenShift AI (RHOAI) | — | — |
| Red Hat | Red Hat OpenShift Container Platform 4 | — | — |
| Red Hat | Red Hat OpenShift Container Platform 5 | — | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | libarchive | 3.8.9-1 | — |
| Debian 13 | libarchive | No fix yet | — |
| Debian 12 | libarchive | 3.6.2-1+deb12u5 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.04 LTS | libarchive | 3.8.5-1ubuntu2.2 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | bsdtar +2 | 3.7.7-11.el10_2 | RHSA-2026:69553 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Hardened Images 1 | bsdcat +5 | 3.8.8-2.1.hum1 | RHSA-2026:38279 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | bsdtar +2 | 3.7.7-11.el10_2 | ALSA-2026:69553 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | libarchive | 3.7.7-11.el10_2 | RLSA-2026:69553 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | libarchive | 3.7.7-7 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 10 | bsdtar +2 | 3.7.7-11.el10_2 | ELSA-2026-69553 |
Advisories 6
- ALSA-2026:69553 Low: libarchive security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2026:69553 Red Hat Security Advisory: libarchive security update Red Hat Security Advisories (RHSA) · Oct 10, 2026
- RHSA-2026:38279 Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update Red Hat Security Advisories (RHSA) · Oct 10, 2026
- WID-SEC-2026-2279 libarchive: Schwachstelle ermöglicht Codeausführung and DoS BSI CERT-Bund (WID) · Sep 23, 2026
- RLSA-2026:69553 Low: libarchive security update Rocky Linux Security Advisories · Sep 23, 2026
- ELSA-2026-69553 Low: libarchive security update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · Sep 23, 2026
References
- RHSA-2026:38279 vendor-advisory
- RHSA-2026:69553 vendor-advisory
- RHSA-2026:79357 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-15028 vdb-entry
- RHBZ#2497970 issue-tracking
- https://github.com/libarchive/libarchive/issues/3251
- https://github.com/libarchive/libarchive/pull/3253