EUVD-2026-104660

Pillow: Image.quantize with empty palette leaks uninitialized stack memory...

Pillow: Image.quantize() with empty palette leaks uninitialized stack memory

============================================================================ Image.quantize with empty palette leaks uninitialized stack memory Location: src/libImaging/Palette.c:216 in ImagingPaletteCacheUpdate Commit: a707c6b21c313880d0771e54965d142dd42358b6...

GHSA-RFGQ-Q3W2-PMV2 Pillow: Image.quantize() with empty palette leaks uninitialized stack memory

============================================================================ Image.quantize with empty palette leaks uninitialized stack memory Location: src/libImaging/Palette.c:216 in ImagingPaletteCacheUpdate Commit: a707c6b21c313880d0771e54965d142dd42358b6...

SUSE CVE-2026-112898

Pillow is a Python imaging library. From 9.1.0 until 13.0.0, Pillow can disclose uninitialized stack memory when Image.quantize uses an empty palette. ImagingPaletteCacheUpdate leaves a local cache array uninitialized when the palette has zero entries, and the conversion path emits those bytes as...

CVE-2026-112898

Pillow is a Python imaging library. From 9.1.0 until 13.0.0, Pillow can disclose uninitialized stack memory when Image.quantize uses an empty palette. ImagingPaletteCacheUpdate leaves a local cache array uninitialized when the palette has zero entries, and the conversion path emits those bytes as...

DEBIAN-CVE-2026-112898

Pillow is a Python imaging library. From 9.1.0 until 13.0.0, Pillow can disclose uninitialized stack memory when Image.quantize uses an empty palette. ImagingPaletteCacheUpdate leaves a local cache array uninitialized when the palette has zero entries, and the conversion path emits those bytes as...

CVE-2026-112898

Pillow is a Python imaging library. From 9.1.0 until 13.0.0, Pillow can disclose uninitialized stack memory when Image.quantize uses an empty palette. ImagingPaletteCacheUpdate leaves a local cache array uninitialized when the palette has zero entries, and the conversion path emits those bytes as...

CVE-2026-112898

The Pillow Python imaging library (versions 9.1.0 through 12.x.x ) is vulnerable to an information disclosure flaw in the Image.quantize() function. When an empty palette is used, the ImagingPaletteCacheUpdate() function fails to initialize a local cache array, leading the conversion path to emit...

CVE-2026-112898 Pillow: Image.quantize() with empty palette leaks uninitialized stack memory

Pillow is a Python imaging library. From 9.1.0 until 13.0.0, Pillow can disclose uninitialized stack memory when Image.quantize uses an empty palette. ImagingPaletteCacheUpdate leaves a local cache array uninitialized when the palette has zero entries, and the conversion path emits those bytes as...

CVE-2026-112898 Pillow: Image.quantize() with empty palette leaks uninitialized stack memory

Pillow is a Python imaging library. From 9.1.0 until 13.0.0, Pillow can disclose uninitialized stack memory when Image.quantize uses an empty palette. ImagingPaletteCacheUpdate leaves a local cache array uninitialized when the palette has zero entries, and the conversion path emits those bytes as...

CVE-2026-112898 Pillow: Image.quantize() with empty palette leaks uninitialized stack memory

Pillow is a Python imaging library. From 9.1.0 until 13.0.0, Pillow can disclose uninitialized stack memory when Image.quantize uses an empty palette. ImagingPaletteCacheUpdate leaves a local cache array uninitialized when the palette has zero entries, and the conversion path emits those bytes as...

CVE-2026-112898

Pillow is a Python imaging library. From 9.1.0 until 13.0.0, Pillow can disclose uninitialized stack memory when Image.quantize uses an empty palette. ImagingPaletteCacheUpdate leaves a local cache array uninitialized when the palette has zero entries, and the conversion path emits those bytes as...

Red Hat: CVE-2026-112898: pillow: Pillow: Information disclosure via empty palette quantization

Pillow is a Python imaging library. From 9.1.0 until 13.0.0, Pillow can disclose uninitialized stack memory when Image.quantize uses an empty palette. ImagingPaletteCacheUpdate leaves a local cache array uninitialized when the palette has zero entries, and the conversion path emits those bytes as...

PT-2026-117685

Name of the Vulnerable Software and Affected Versions Pillow versions 9.1.0 through 12.x Description Pillow can disclose uninitialized stack memory when the Image.quantize function uses an empty palette. This occurs because the ImagingPaletteCacheUpdate function leaves a local cache array...

Pillow improper exception handling vulnerabilities

Pillow versions from 9.1.0 to 13.0.0 have a vulnerability related to improper exception handling. This vulnerability arises when the ImagingPaletteCacheUpdate function is used with an air-conditioned palette, and the local cache array is not initialized. As a result, the conversion path uses...