GNU Tar through 1.35 allows file overwrite via directory traversal in crafted TAR archives, with a certain two-step process. First, the victim must extract an archive that contains a ../ symlink to a critical directory. Second, the victim must extract an archive that contains a critical file, specified via a relative pathname that begins with the symlink name and ends with that critical file's name. Here, the extraction follows the symlink and overwrites the critical file. This bypasses the protection mechanism of "Member name contains '..'" that would occur for a single TAR archive that attempted to specify the critical file via a ../ approach. For example, the first archive can contain "x -> ../../../../../home/victim/.ssh" and the second archive can contain x/authorized_keys. This can affect server applications that automatically extract any number of user-supplied TAR archives, and were relying on the blocking of traversal. This can also affect software installation processes in which "tar xf" is run more than once (e.g., when installing a package can automatically install two dependencies that are set up as untrusted tarballs instead of official packages). NOTE: the official GNU Tar manual has an otherwise-empty directory for each "tar xf" in its Security Rules of Thumb; however, third-party advice leads users to run "tar xf" more than once into the same directory.

The remote Fedora 44 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-0895af5ebe advisory.

    Automatic update for tar-1.35-8.fc44.

    ##### **Changelog**

    ```
    * Wed Jan 21 2026 Pavel Cahyna <pcahyna@redhat.com> - 2:1.35-8
    - Backport upstream fix for savannah bug 65838, commit 1e6ce98e (fedora#2427654)
    - added padding with zeros info message (#2089298)
    - do not report disk error as file shrank (#2089316)
    - upstream fix for savannah bug 64581, commit 51142180       (crash with TAR_OPTIONS) (fedora#2389217)
    - Backport fix for regression in the --no-overwrite-dir option       Upstream commit 4e742fc8674064a9fa00d4483d06aca48d5b0463, discussed       in https://www.mail-archive.com/bug-tar@gnu.org/msg06445.html
    - Backport upstream changes to jailify extraction directory       Includes related gnulib changes to add openat2       Fixes CVE-2025-45582 (fedora#2380007)

    ```

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2026:0435 advisory.

    The GNU tar program can save multiple files in an archive and restore files from an archive.

    Security Fix(es):

    * tar: Tar path traversal (CVE-2025-45582)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2026:0434 advisory.

    The GNU tar program can save multiple files in an archive and restore files from an archive.

    Security Fix(es):

    * tar: Tar path traversal (CVE-2025-45582)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote MiracleLinux 9 host has a package installed that is affected by a vulnerability as referenced in the AXSA:2026-007:01 advisory.

    * tar: Tar path traversal (CVE-2025-45582)

Tenable has extracted the preceding description block directly from the MiracleLinux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote AlmaLinux 9 host has a package installed that is affected by a vulnerability as referenced in the ALSA-2026:0067 advisory.

    * tar: Tar path traversal (CVE-2025-45582)

Tenable has extracted the preceding description block directly from the AlmaLinux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote RockyLinux 9 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:0067 advisory.

    * tar: Tar path traversal (CVE-2025-45582)

Tenable has extracted the preceding description block directly from the RockyLinux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 9 host has a package installed that is affected by a vulnerability as referenced in the ELSA-2026-0067 advisory.

    [2:1.34-9]
    - Fix the last patch to solve a regression with -x and --xattrs: RHEL-136277       also, fix another tiny mistake in the patch (w/o visible consequences)

    [2:1.34-8]
    - Backport upstream changes to jailify extraction directory       Includes related gnulib changes to add openat2       Fixes CVE-2025-45582

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 10 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2026:0135 advisory.

    The GNU tar program can save multiple files in an archive and restore files from an archive.

    Security Fix(es):

    * tar: Tar path traversal (CVE-2025-45582)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2026:0067 advisory.

    The GNU tar program can save multiple files in an archive and restore files from an archive.

    Security Fix(es):

    * tar: Tar path traversal (CVE-2025-45582)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 10 host has a package installed that is affected by a vulnerability as referenced in the ELSA-2026-0002 advisory.

    [2:1.35-9]
    - Fix a tiny mistake in the last patch affecting hardling extraction       (w/o visible consequences)

    [2:1.35-8]
    - Backport upstream changes to jailify extraction directory       Includes related gnulib changes to add openat2       Fixes CVE-2025-45582

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote AlmaLinux 10 host has a package installed that is affected by a vulnerability as referenced in the ALSA-2026:0002 advisory.

    * tar: Tar path traversal (CVE-2025-45582)

Tenable has extracted the preceding description block directly from the AlmaLinux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote RockyLinux 10 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:0002 advisory.

    * tar: Tar path traversal (CVE-2025-45582)

Tenable has extracted the preceding description block directly from the RockyLinux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 10 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2026:0002 advisory.

    The GNU tar program can save multiple files in an archive and restore files from an archive.

    Security Fix(es):

    * tar: Tar path traversal (CVE-2025-45582)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - GNU Tar through 1.35 allows file overwrite via directory traversal in crafted TAR archives, with a certain     two-step process. First, the victim must extract an archive that contains a ../ symlink to a critical     directory. Second, the victim must extract an archive that contains a critical file, specified via a     relative pathname that begins with the symlink name and ends with that critical file's name. Here, the     extraction follows the symlink and overwrites the critical file. This bypasses the protection mechanism of     Member name contains '..' that would occur for a single TAR archive that attempted to specify the     critical file via a ../ approach. For example, the first archive can contain x ->     ../../../../../home/victim/.ssh and the second archive can contain x/authorized_keys. This can affect     server applications that automatically extract any number of user-supplied TAR archives, and were relying     on the blocking of traversal. This can also affect software installation processes in which tar xf is     run more than once (e.g., when installing a package can automatically install two dependencies that are     set up as untrusted tarballs instead of official packages). NOTE: the official GNU Tar manual has an     otherwise-empty directory for each tar xf in its Security Rules of Thumb; however, third-party advice     leads users to run tar xf more than once into the same directory. (CVE-2025-45582)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Severity
296466	Fedora 44 : tar (2026-0895af5ebe)	Nessus	Fedora Local Security Checks	medium
283566	RHEL 9 : tar (RHSA-2026:0435)	Nessus	Red Hat Local Security Checks	medium
283537	RHEL 9 : tar (RHSA-2026:0434)	Nessus	Red Hat Local Security Checks	medium
282801	MiracleLinux 9 : tar-1.34-9.el9_7 (AXSA:2026-007:01)	Nessus	Miracle Linux Local Security Checks	medium
282635	AlmaLinux 9 : tar (ALSA-2026:0067)	Nessus	Alma Linux Local Security Checks	medium
281880	RockyLinux 9 : tar (RLSA-2026:0067)	Nessus	Rocky Linux Local Security Checks	medium
281875	Oracle Linux 9 : tar (ELSA-2026-0067)	Nessus	Oracle Linux Local Security Checks	medium
281855	RHEL 10 : tar (RHSA-2026:0135)	Nessus	Red Hat Local Security Checks	medium
281784	RHEL 9 : tar (RHSA-2026:0067)	Nessus	Red Hat Local Security Checks	medium
281764	Oracle Linux 10 : tar (ELSA-2026-0002)	Nessus	Oracle Linux Local Security Checks	medium
281751	AlmaLinux 10 : tar (ALSA-2026:0002)	Nessus	Alma Linux Local Security Checks	medium
281742	RockyLinux 10 : tar (RLSA-2026:0002)	Nessus	Rocky Linux Local Security Checks	medium
281650	RHEL 10 : tar (RHSA-2026:0002)	Nessus	Red Hat Local Security Checks	medium
247155	Linux Distros Unpatched Vulnerability : CVE-2025-45582	Nessus	Misc.	medium

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