OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, a local unprivileged user can coerce cupsd into authenticating to an attacker-controlled localhost IPP service with a reusable Authorization: Local ... token. That token is enough to drive /admin/ requests on localhost, and the attacker can combine CUPS-Create-Local-Printer with printer-is-shared=true to persist a file:///... queue even though the normal FileDevice policy rejects such URIs. Printing to that queue gives an arbitrary root file overwrite; the PoC below uses that primitive to drop a sudoers fragment and demonstrate root command execution. At time of publication, there are no publicly available patches.

The remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1617-1 advisory.

    - CVE-2026-34980: Shared PostScript queue lets anonymous Print-Job requests reach `lp` code execution over     the network (bsc#1261569).
    - CVE-2026-34990: Local print admin token disclosure using temporary printers (bsc#1261568).

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

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

The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-bce5853e95 advisory.

    2.4.17 - security fixes for CVE-2026-39316, CVE-2026-39314, CVE-2026-34979, CVE-2026-34990,     CVE-2026-27447, CVE-2026-34978


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

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

The remote Fedora 42 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-34454fdb74 advisory.

    2.4.17 - security fixes for CVE-2026-39316, CVE-2026-39314, CVE-2026-34979, CVE-2026-34990,     CVE-2026-27447, CVE-2026-34978


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

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

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-82a2214b53 advisory.

    2.4.17 - security fixes for CVE-2026-39316, CVE-2026-39314, CVE-2026-34979, CVE-2026-34990,     CVE-2026-27447, CVE-2026-34978


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

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

The version of cups installed on the remote host is prior to 2.4.17. It is, therefore, affected by multiple vulnerabilities as referenced in the SSA:2026-107-01 advisory.

    New cups packages are available for Slackware 15.0 and -current to fix security issues.

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

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

The remote Fedora 45 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-7d1173fd68 advisory.

    Automatic update for cups-2.4.17-1.fc45.

    ##### **Changelog**

    ```
    * Fri Apr 17 2026 Zdenek Dohnal <zdohnal@redhat.com> - 1:2.4.17-1
    - 2.4.17 (fedora#2456363, fedora#2456362, fedora#2454994, fedora#2454993,       fedora#2454992, fedora#2454990)

    ```

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

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

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-010663 advisory.

    OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In     versions 2.4.16 and prior, a local unprivileged user can coerce cupsd into authenticating to an attacker-     controlled localhost IPP service with a reusable Authorization: Local ... token. That token is enough to     drive /admin/ requests on localhost, and the attacker can combine CUPS-Create-Local-Printer with printer-     is-shared=true to persist a file:///... queue even though the normal FileDevice policy rejects such URIs.
    Printing to that queue gives an arbitrary root file overwrite; the PoC below uses that primitive to drop a     sudoers fragment and demonstrate root command execution. At time of publication, there are no publicly     available patches.

Tenable has extracted the preceding description block directly from the Unity 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 SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2026:1399-1 advisory.

    This update for cups fixes the following issue:

    - CVE-2026-34990: Local print admin token disclosure using temporary printers (bsc#1261568).

Tenable has extracted the preceding description block directly from the SUSE 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 Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007174 advisory.

    OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In     versions 2.4.16 and prior, a local unprivileged user can coerce cupsd into authenticating to an attacker-     controlled localhost IPP service with a reusable Authorization: Local ... token. That token is enough to     drive /admin/ requests on localhost, and the attacker can combine CUPS-Create-Local-Printer with printer-     is-shared=true to persist a file:///... queue even though the normal FileDevice policy rejects such URIs.
    Printing to that queue gives an arbitrary root file overwrite; the PoC below uses that primitive to drop a     sudoers fragment and demonstrate root command execution. At time of publication, there are no publicly     available patches.

Tenable has extracted the preceding description block directly from the Unity 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.

  - OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In     versions 2.4.16 and prior, a local unprivileged user can coerce cupsd into authenticating to an attacker-     controlled localhost IPP service with a reusable Authorization: Local ... token. That token is enough to     drive /admin/ requests on localhost, and the attacker can combine CUPS-Create-Local-Printer with printer-     is-shared=true to persist a file:///... queue even though the normal FileDevice policy rejects such URIs.
    Printing to that queue gives an arbitrary root file overwrite; the PoC below uses that primitive to drop a     sudoers fragment and demonstrate root command execution. At time of publication, there are no publicly     available patches. (CVE-2026-34990)

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

ID	Name	Product	Family	Severity
310230	SUSE SLES12 Security Update : cups (SUSE-SU-2026:1617-1)	Nessus	SuSE Local Security Checks	medium
310205	Fedora 44 : cups (2026-bce5853e95)	Nessus	Fedora Local Security Checks	medium
309195	Fedora 42 : cups (2026-34454fdb74)	Nessus	Fedora Local Security Checks	medium
307661	Fedora 43 : cups (2026-82a2214b53)	Nessus	Fedora Local Security Checks	medium
307392	Slackware Linux 15.0 / current cups Multiple Vulnerabilities (SSA:2026-107-01)	Nessus	Slackware Local Security Checks	medium
307391	Fedora 45 : cups (2026-7d1173fd68)	Nessus	Fedora Local Security Checks	medium
307360	Unity Linux 20.1050a / 20.1060a / 20.1070a Security Update: cups (UTSA-2026-010663)	Nessus	Unity Linux Local Security Checks	medium
306879	SUSE SLED15 / SLES15 Security Update : cups (SUSE-SU-2026:1399-1)	Nessus	SuSE Local Security Checks	medium
306816	Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: cups (UTSA-2026-007174)	Nessus	Unity Linux Local Security Checks	medium
304962	Linux Distros Unpatched Vulnerability : CVE-2026-34990	Nessus	Misc.	medium

Detections

Analytics

CVE-2026-34990

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Tenable Plugins

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