Pillow is a Python imaging library. Prior to 13.0.0, Pillow's JPEG decoder can write a full-width scanline into a buffer sized for a requested draft scale. ImagingJpegDecode does not verify libjpeg's actual output width and component count after scaling is requested, and an 8-bit lossless SOF3 JPEG decoded by a build linked to libjpeg-turbo 3.x can ignore the requested downscaling geometry. An attacker can supply such a JPEG to an application that uses draft() or thumbnail() to request downscaling. This can corrupt heap memory, crash the process, or potentially allow code execution. Older libjpeg-turbo 2.x and IJG builds reject the SOF3 input. This issue is fixed in version 13.0.0.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - Pillow is a Python imaging library. Prior to 13.0.0, Pillow's JPEG decoder can write a full-width scanline
    into a buffer sized for a requested draft scale. ImagingJpegDecode does not verify libjpeg's actual output
    width and component count after scaling is requested, and an 8-bit lossless SOF3 JPEG decoded by a build
    linked to libjpeg-turbo 3.x can ignore the requested downscaling geometry. An attacker can supply such a
    JPEG to an application that uses draft() or thumbnail() to request downscaling. This can corrupt heap
    memory, crash the process, or potentially allow code execution. Older libjpeg-turbo 2.x and IJG builds
    reject the SOF3 input. This issue is fixed in version 13.0.0. (CVE-2026-112403)

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. Prior to 13.0.0, Pillow's JPEG decoder can write a full-width scanline     into a buffer sized for a requested draft scale. ImagingJpegDecode does not verify libjpeg's actual output     width and component count after scaling is requested, and an 8-bit lossless SOF3 JPEG decoded by a build     linked to libjpeg-turbo 3.x can ignore the requested downscaling geometry. An attacker can supply such a     JPEG to an application that uses draft() or thumbnail() to request downscaling. This can corrupt heap     memory, crash the process, or potentially allow code execution. Older libjpeg-turbo 2.x and IJG builds     reject the SOF3 input. This issue is fixed in version 13.0.0. (CVE-2026-112403)

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

ID	Name	Product	Family	Type	Severity
476408	SCA: security update for Pillow (GHSA-8g5g-8vmr-9782)	Tenable Cloud Security	SCA Checks	Local	critical
476408	SCA: security update for Pillow (GHSA-8g5g-8vmr-9782)	Tenable Self-Hosted Container Security	SCA Checks	Local	critical
367841	Linux Distros Unpatched Vulnerability : CVE-2026-112403	Nessus	Misc.	Local	critical

Detections

Analytics

CVE-2026-112403

critical

Tenable Plugins

critical

critical

critical