Description
A flaw was found in tar. A remote attacker could exploit this vulnerability by crafting a malicious archive, leading to hidden file injection with fully attacker-controlled content. This bypasses pre-extraction inspection mechanisms, potentially allowing an attacker to introduce malicious files onto a system without detection.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | — | — |
| Red Hat | Red Hat Enterprise Linux 8 | — | — |
| Red Hat | Red Hat Enterprise Linux 9 | — | — |
| Red Hat | Red Hat Discovery 2 | — | — |
| Red Hat | Red Hat Hardened Images | — | — |
| Red Hat | Red Hat Update Infrastructure 5 | — | — |
| Red Hat | Red Hat Enterprise Linux 6 | — | — |
| Red Hat | Red Hat Enterprise Linux 7 | — | — |
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 | tar | No fix yet | — |
| Debian 13 | tar | No fix yet | — |
| Debian 12 | tar | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.04 LTS | tar | 1.35+dfsg-4ubuntu0.4 | USN-8477-3, USN-8477-2 |
| Ubuntu 25.10 | tar | No fix yet | — |
| Ubuntu 24.04 LTS | tar | 1.35+dfsg-3ubuntu0.4 | USN-8477-3, USN-8477-2 |
| Ubuntu 22.04 LTS | tar | 1.34+dfsg-1ubuntu0.1.22.04.6 | USN-8477-3, USN-8477-2 |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | tar | 1.30+dfsg-7ubuntu0.20.04.4+esm3 | USN-8477-3, USN-8477-2 |
| Ubuntu Pro 18.04 LTS | tar | 1.29b-2ubuntu0.4+esm4 | USN-8477-3, USN-8477-2 |
| Ubuntu Pro 16.04 LTS | tar | 1.28-2.1ubuntu0.2+esm6 | USN-8477-3, USN-8477-2 |
| Ubuntu Pro 14.04 LTS | tar | 1.27.1-1ubuntu0.1+esm7 | USN-8477-3, USN-8477-2 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | tar | 2:1.35-13.el10_2 | RHSA-2026:61586 |
| RHEL 9 | tar | 2:1.34-13.el9_8 | RHSA-2026:61581 |
| RHEL 8 | tar | 2:1.30-13.el8_10 | RHSA-2026:70390 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Hardened Images 1 | tar | 1.35-10.hum1 | RHSA-2026:66514 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | tar | 2:1.35-13.el10_2 | ALSA-2026:61586 |
| AlmaLinux 9 | tar | 2:1.34-13.el9_8 | ALSA-2026:61581 |
| AlmaLinux 8 | tar | 2:1.30-13.el8_10 | ALSA-2026:70390 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | tar | 2:1.35-13.el10_2 | RLSA-2026:61586 |
| Rocky Linux 9 | tar | 2:1.34-13.el9_8 | RLSA-2026:61581 |
| Rocky Linux 8 | tar | 2:1.30-13.el8_10 | RLSA-2026:70390 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | tar | 1.34-150000.3.42.1 | SUSE-SU-2026:2714-1 |
| SLES 15 SP6 | tar | 1.34-150000.3.42.1 | SUSE-SU-2026:2714-1 |
| SLES 15 SP5 | tar | 1.34-150000.3.42.1 | SUSE-SU-2026:2714-1 |
| SLES 15 SP4 | tar | 1.34-150000.3.42.1 | SUSE-SU-2026:2714-1 |
Show 11 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | tar | 1.35-160000.4.1 | SUSE-SU-2026:22377-1 |
| SLES for SAP 15 SP6 | tar | 1.34-150000.3.42.1 | SUSE-SU-2026:2714-1 |
| SLES for SAP 15 SP5 | tar | 1.34-150000.3.42.1 | SUSE-SU-2026:2714-1 |
| SLES for SAP 15 SP4 | tar | 1.34-150000.3.42.1 | SUSE-SU-2026:2714-1 |
| SLES 16.0 | tar | 1.35-160000.4.1 | SUSE-SU-2026:22377-1 |
| SLE Micro 6.2 | tar | 1.35-160000.4.1 | SUSE-SU-2026:22289-1 |
| SLE Micro 5.5 | tar | 1.34-150000.3.42.1 | SUSE-SU-2026:2714-1 |
| SLE Micro 5.4 | tar | 1.34-150000.3.42.1 | SUSE-SU-2026:2714-1 |
| SLE Micro 5.3 | tar | 1.34-150000.3.42.1 | SUSE-SU-2026:2714-1 |
| SLE HPC 15 SP5 | tar | 1.34-150000.3.42.1 | SUSE-SU-2026:2714-1 |
| SLE HPC 15 SP4 | tar | 1.34-150000.3.42.1 | SUSE-SU-2026:2714-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | tar | 1.35-8.1 | openSUSE-SU-2026:11125-1 |
| openSUSE Leap 16.0 | tar | 1.35-160000.4.1 | openSUSE-SU-2026:21070-1 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | tar | No fix yet | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | tar | 2:1.30-13.el8_10 | ELSA-2026-70390 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | gnutar | 1.35-r9 | — |
| Wolfi rolling | gnutar-doc +1 | No fix yet | — |
Advisories 21
- WID-SEC-2026-4090 Oracle Communications: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 11, 2026
- WID-SEC-2026-1057 GNU tar: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen BSI CERT-Bund (WID) · Nov 3, 2026
- ALSA-2026:61581 Moderate: tar security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:61586 Moderate: tar security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:70390 Moderate: tar security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- WID-SEC-2026-3642 Meinberg LANTIME: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 14, 2026
- RLSA-2026:70390 Moderate: tar security, bug fix, and enhancement update Rocky Linux Security Advisories · Sep 24, 2026
- RHSA-2026:70390 Red Hat Security Advisory: tar security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Sep 23, 2026
- RHSA-2026:66514 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Sep 23, 2026
- RHSA-2026:61586 Red Hat Security Advisory: tar security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Sep 23, 2026
- RHSA-2026:61581 Red Hat Security Advisory: tar security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Sep 23, 2026
- ELSA-2026-70390 Moderate: tar security, bug fix, and enhancement update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Sep 23, 2026
- RLSA-2026:61586 Moderate: tar security, bug fix, and enhancement update Rocky Linux Security Advisories · Sep 11, 2026
- RLSA-2026:61581 Moderate: tar security, bug fix, and enhancement update Rocky Linux Security Advisories · Sep 1, 2026
- USN-8477-3 tar regression Ubuntu Security Notices (USN) · Jul 22, 2026
- USN-8477-2 tar regression Ubuntu Security Notices (USN) · Jul 17, 2026
- SUSE-SU-2026:22377-1 Security update for tar SUSE / openSUSE Security Updates · Jul 2, 2026
- SUSE-SU-2026:2714-1 Security update for tar SUSE / openSUSE Security Updates · Jul 1, 2026
- openSUSE-SU-2026:21070-1 Security update for tar SUSE / openSUSE Security Updates · Jun 30, 2026
- SUSE-SU-2026:22289-1 Security update for tar SUSE / openSUSE Security Updates · Jun 30, 2026
- openSUSE-SU-2026:11125-1 tar-1.35-8.1 on GA media SUSE / openSUSE Security Updates · Jun 26, 2026
References
- RHSA-2026:61581 vendor-advisory
- RHSA-2026:61586 vendor-advisory
- RHSA-2026:61783 vendor-advisory
- RHSA-2026:66018 vendor-advisory
- RHSA-2026:66514 vendor-advisory
- RHSA-2026:70390 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-5704 vdb-entry
- RHBZ#2455360 issue-tracking