Pillow is a Python imaging library. From 10.3.0 to before 12.1.1, n out-of-bounds write may be triggered when loading a specially crafted PSD image. This vulnerability is fixed in 12.1.1.

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-1452 advisory.

    Pillow is a Python imaging library. From 10.3.0 to before 12.1.1, n out-of-bounds write may be triggered     when loading a specially crafted PSD image. This vulnerability is fixed in 12.1.1. (CVE-2026-25990)

Tenable has extracted the preceding description block directly from the tested product 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 version of python-pillow installed on the remote host is prior to 2.0.0-23.gitd1c6db8. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2026-3180 advisory.

    Pillow is a Python imaging library. From 10.3.0 to before 12.1.1, n out-of-bounds write may be triggered     when loading a specially crafted PSD image. This vulnerability is fixed in 12.1.1. (CVE-2026-25990)

Tenable has extracted the preceding description block directly from the tested product 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 Fedora 42 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-0d673fa503 advisory.

    Backport fix for CVE-2026-25990.

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 Debian 13 host has packages installed that are affected by a vulnerability as referenced in the dsa-6147 advisory.

    - -------------------------------------------------------------------------     Debian Security Advisory DSA-6147-1                   security@debian.org     https://www.debian.org/security/                       Moritz Muehlenhoff     February 20, 2026                     https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package        : pillow     CVE ID         : CVE-2026-25990

    Yarden Porat discovered that missing input sanitising in the PSD support     of Pillow, a Python imaging library, could result in denial of service     or the execution of arbitrary code if malformed images are processed.

    The oldstable distribution (bookworm) is not affected.

    For the stable distribution (trixie), this problem has been fixed in     version 11.1.0-5+deb13u1.

    We recommend that you upgrade your pillow packages.

    For the detailed security status of pillow please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/pillow

    Further information about Debian Security Advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://www.debian.org/security/

    Mailing list: debian-security-announce@lists.debian.org

Tenable has extracted the preceding description block directly from the Debian 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 Ubuntu 25.10 host has packages installed that are affected by a vulnerability as referenced in the USN-8047-1 advisory.

    Yarden Porat discovered that Pillow incorrectly handled certain malformed PSD images. An attacker could     use this issue to cause Pillow to crash, resulting in a denial of service, or possibly execute arbitrary     code.

Tenable has extracted the preceding description block directly from the Ubuntu 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 Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-9f517a7495 advisory.

    Backport fix for CVE-2026-25990.

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.

ID	Name	Product	Family	Severity
301350	Amazon Linux 2023 : python3-pillow, python3-pillow-devel, python3-pillow-tk (ALAS2023-2026-1452)	Nessus	Amazon Linux Local Security Checks	critical
301268	Amazon Linux 2 : python-pillow, --advisory ALAS2-2026-3180 (ALAS-2026-3180)	Nessus	Amazon Linux Local Security Checks	critical
300868	Fedora 42 : python-pillow (2026-0d673fa503)	Nessus	Fedora Local Security Checks	critical
299778	Debian dsa-6147 : python-pil-doc - security update	Nessus	Debian Local Security Checks	critical
299493	Ubuntu 25.10 : Pillow vulnerability (USN-8047-1)	Nessus	Ubuntu Local Security Checks	critical
299361	Fedora 43 : python-pillow (2026-9f517a7495)	Nessus	Fedora Local Security Checks	critical

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CVE-2026-25990

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