EUVD-2026-43746

Pillow: Controlled heap out-of-bounds write in Pillow ImageCmsTransform.apply via output mode mismatch...

EUVD-2026-43730

Pillow JPEG2000 tiled decode retains a growing scratch buffer and can be used for denial of service...

EUVD-2026-43753

Pillow: Decompression Bomb DoS via PdfParser.PdfStream.decode...

EUVD-2026-43734

Pillow: Heap out-of-bounds write in ImageFilter.RankFilter via integer overflow in ImagingExpand...

EUVD-2026-41901

Pillow GdImageFile.open: image dimensions accepted without decompressionbombcheck...

BIT-PILLOW-2026-59205 Pillow: Controlled heap out-of-bounds write in `ImageCmsTransform.apply()` via output mode mismatch

Pillow is a Python imaging library. Prior to 12.3.0, Pillow's ImageCms.ImageCmsTransform.applyim, imOut API can trigger controlled native heap corruption when the caller supplies an output image whose mode does not match the transform's declared output mode. This issue is fixed in version 12.3.0...

BIT-PILLOW-2026-59203 Pillow EpsImagePlugin negative %%BeginBinary byte count causes infinite loop denial of service

Pillow is a Python imaging library. From 12.0.0 through 12.2.0, Pillow's EPS parser in PIL/EpsImagePlugin.py accepts a negative byte count in the %%BeginBinary directive, allowing a crafted EPS file to cause Image.open to seek backwards to the same directive and parse it repeatedly in an infinite...

Out-of-bounds Write

Overview Affected versions of this package are vulnerable to Out-of-bounds Write via the apply function. An attacker can cause memory corruption and potentially crash the application by providing an output image with a mode that does not match the transform's declared output mode. Remediation...

Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in the decode function of PdfStream in PdfParser, where zlib decompression is performed without limiting the output size. An attacker can cause excessive memory consumption by...

DEBIAN-CVE-2026-59200

Pillow is a Python imaging library. From 5.1.0 until 12.3.0, PdfParser.PdfStream.decode in PIL/PdfParser.py calls zlib.decompress with bufsize set to the PDF stream Length field without bounding the decompressed output size, allowing a crafted FlateDecode PDF stream to exhaust memory from a small...

CVE-2026-59197

Pillow (Python Imaging Library) contains a heap out-of-bounds write in the public rank-filter API prior to version 12.3.0. The flaw occurs when an extremely large odd filter size is used, because ImageFilter.RankFilter.filter() calls image.expand(size // 2, size // 2) before rank-filter size vali...

DEBIAN-CVE-2026-59203

Pillow is a Python imaging library. From 12.0.0 through 12.2.0, Pillow's EPS parser in PIL/EpsImagePlugin.py accepts a negative byte count in the %%BeginBinary directive, allowing a crafted EPS file to cause Image.open to seek backwards to the same directive and parse it repeatedly in an infinite...

CVE-2026-59204

Pillow is a Python imaging library. From 8.2.0 through 12.2.0, src/libImaging/Jpeg2KDecode.c accumulates totalcomponentwidth across every tile in a JPEG2000 image instead of recomputing it per tile, allowing a crafted tiled JPEG2000 file to force substantially higher transient memory usage and...

CVE-2026-59203

Pillow (Python imaging library) 12.0.0–12.2.0 is affected by an issue in the EPS parser (PIL/EpsImagePlugin.py) where a negative byte count in the %%BeginBinary directive allows an EPS file to cause Image.open() to seek backwards to the same directive and repeatedly parse it, creating an infinite...

CVE-2026-59203 Pillow EpsImagePlugin negative %%BeginBinary byte count causes infinite loop denial of service

Pillow is a Python imaging library. From 12.0.0 through 12.2.0, Pillow's EPS parser in PIL/EpsImagePlugin.py accepts a negative byte count in the %%BeginBinary directive, allowing a crafted EPS file to cause Image.open to seek backwards to the same directive and parse it repeatedly in an infinite...

PT-2026-58092

Name of the Vulnerable Software and Affected Versions Pillow versions prior to 12.3.0 Description The ImageCms.ImageCmsTransform.applyim, imOut API can trigger controlled native heap corruption. This occurs when the caller provides an output image whose mode is inconsistent with the transform's...

OPENSUSE-SU-2026:11261-1 python313-Pillow-12.3.0-1.1 on GA media

These are all security issues fixed in the python313-Pillow-12.3.0-1.1 package on the GA media of openSUSE Tumbleweed...

BIT-PILLOW-2026-54059 Pillow: PcfFontFile._load_bitmaps()`: `Image.frombytes()` called without `_decompression_bomb_check()` — bomb protection bypass via PCF font loading

Pillow is a Python imaging library. Prior to 12.3.0, PIL/PcfFontFile.py loadbitmaps read glyph dimensions from the PCF METRICS section and passed them directly to Image.frombytes without calling Image.decompressionbombcheck, allowing crafted PCF font data to cause excessive memory allocation. Thi...

CVE-2026-55798

A flaw was found in Pillow, a Python imaging library. The WindowsViewer.getcommand function constructed a command-line interface CLI shell command by directly embedding a file path without proper escaping. This allowed shell metacharacters within the file path to inject arbitrary commands into...

Command Injection

Overview Affected versions of this package are vulnerable to Command Injection via the getcommand function. An attacker can execute arbitrary commands by supplying a file path containing shell metacharacters. Remediation Upgrade pillow to version 12.3.0 or higher. References - GitHub Advisory -...