Pillow is a Python imaging library. From version 4.2.0 to before version 12.2.0, an attacker can supply a malicious PDF that causes the process to hang indefinitely, consuming 100% CPU and making the application unresponsive. This issue has been patched in version 12.2.0.

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1712 advisory.

    Pillow is a Python imaging library. Prior to version 12.2.0, if a font advances for each glyph by an     exceeding large amount, when Pillow keeps track of the current position, it may lead to an integer     overflow. This issue has been patched in version 12.2.0. (CVE-2026-42308)

    Pillow is a Python imaging library. From version 4.2.0 to before version 12.2.0, an attacker can supply a     malicious PDF that causes the process to hang indefinitely, consuming 100% CPU and making the application     unresponsive. This issue has been patched in version 12.2.0. (CVE-2026-42310)

    Pillow is a Python imaging library. From version 10.3.0 to before version 12.2.0, processing a malicious     PSD file could lead to memory corruption, potentially resulting in a crash or arbitrary code execution.
    This issue has been patched in version 12.2.0. (CVE-2026-42311)

Tenable has extracted the preceding description block directly from the tested product 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 SUSE Linux SLES15 host has a package installed that is affected by a vulnerability as referenced in the SUSE- SU-2026:1842-1 advisory.

    This update for python-Pillow fixes the following issue

    - CVE-2026-42310: infinite loop and resource exhaustion when processing specially crafted PDFs     (bsc#1265154).

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

  - Pillow is a Python imaging library. From version 4.2.0 to before version 12.2.0, an attacker can supply a     malicious PDF that causes the process to hang indefinitely, consuming 100% CPU and making the application     unresponsive. This issue has been patched in version 12.2.0. (CVE-2026-42310)

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

ID	Name	Product	Family	Severity
316954	Amazon Linux 2023 : python3-pillow, python3-pillow-devel, python3-pillow-tk (ALAS2023-2026-1712)	Nessus	Amazon Linux Local Security Checks	high
315063	SUSE SLES15 Security Update : python-Pillow (SUSE-SU-2026:1842-1)	Nessus	SuSE Local Security Checks	medium
313620	Linux Distros Unpatched Vulnerability : CVE-2026-42310	Nessus	Misc.	medium

Detections

Analytics

CVE-2026-42310

medium

Tenable Plugins

high

medium

medium