BIT-PILLOW-2026-96641 Pillow: Reachable undefined behavior in native integer operations, potentially leading to denial of service or logic integrity compromise

Pillow is a Python imaging library. Prior to 13.0.0, PILfont text-width accumulation in src/imaging.c checks positive glyph advances against INTMAX but does not check negative advances against INTMIN. Repeating a signed 16-bit advance of -32768 can therefore execute a signed C integer overflow in...

PT-2026-132466

Pillow is a Python imaging library. Prior to 13.0.0, PILfont text-width accumulation in src/ imaging.c checks positive glyph advances against INT MAX but does not check negative advances against INT MIN. Repeating a signed 16-bit advance of -32768 can therefore execute a signed C integer overflow...

SUSE CVE-2026-96641

Pillow is a Python imaging library. Prior to 13.0.0, PILfont text-width accumulation in src/imaging.c checks positive glyph advances against INTMAX but does not check negative advances against INTMIN. Repeating a signed 16-bit advance of -32768 can therefore execute a signed C integer overflow in...

EUVD-2026-107562

Pillow: Reachable undefined behavior in native integer operations, potentially leading to denial of service or logic integrity compromise...

Linux Distros Unpatched Vulnerability : CVE-2026-96641

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, PILfont text-width accumulation in src/imaging.c checks positive glyph advances against INTMAX but does not...

DEBIAN-CVE-2026-96641

Pillow is a Python imaging library. Prior to 13.0.0, PILfont text-width accumulation in src/imaging.c checks positive glyph advances against INTMAX but does not check negative advances against INTMIN. Repeating a signed 16-bit advance of -32768 can therefore execute a signed C integer overflow in...

CVE-2026-96641

Pillow is a Python imaging library. Prior to 13.0.0, PILfont text-width accumulation in src/imaging.c checks positive glyph advances against INTMAX but does not check negative advances against INTMIN. Repeating a signed 16-bit advance of -32768 can therefore execute a signed C integer overflow in...

PYSEC-2026-4340

Pillow is a Python imaging library. Prior to 13.0.0, PILfont text-width accumulation in src/imaging.c checks positive glyph advances against INTMAX but does not check negative advances against INTMIN. Repeating a signed 16-bit advance of -32768 can therefore execute a signed C integer overflow in...

UBUNTU-CVE-2026-96641

Pillow is a Python imaging library. Prior to 13.0.0, PILfont text-width accumulation in src/imaging.c checks positive glyph advances against INTMAX but does not check negative advances against INTMIN. Repeating a signed 16-bit advance of -32768 can therefore execute a signed C integer overflow in...

CVE-2026-96641

Pillow is a Python imaging library. Prior to 13.0.0, PILfont text-width accumulation in src/imaging.c checks positive glyph advances against INTMAX but does not check negative advances against INTMIN. Repeating a signed 16-bit advance of -32768 can therefore execute a signed C integer overflow in...

CVE-2026-96641

Pillow is a Python imaging library. Prior to 13.0.0, PILfont text-width accumulation in src/imaging.c checks positive glyph advances against INTMAX but does not check negative advances against INTMIN. Repeating a signed 16-bit advance of -32768 can therefore execute a signed C integer overflow in...

CVE-2026-96641

Pillow is a Python imaging library. Prior to 13.0.0, PILfont text-width accumulation in src/imaging.c checks positive glyph advances against INTMAX but does not check negative advances against INTMIN. Repeating a signed 16-bit advance of -32768 can therefore execute a signed C integer overflow in...

CVE-2026-96641 Pillow: Reachable undefined behavior in native integer operations, potentially leading to denial of service or logic integrity compromise

Pillow is a Python imaging library. Prior to 13.0.0, PILfont text-width accumulation in src/imaging.c checks positive glyph advances against INTMAX but does not check negative advances against INTMIN. Repeating a signed 16-bit advance of -32768 can therefore execute a signed C integer overflow in...

CVE-2026-96641 Pillow: Reachable undefined behavior in native integer operations, potentially leading to denial of service or logic integrity compromise

Pillow is a Python imaging library. Prior to 13.0.0, PILfont text-width accumulation in src/imaging.c checks positive glyph advances against INTMAX but does not check negative advances against INTMIN. Repeating a signed 16-bit advance of -32768 can therefore execute a signed C integer overflow in...

CVE-2026-96641 Pillow: Reachable undefined behavior in native integer operations, potentially leading to denial of service or logic integrity compromise

Pillow is a Python imaging library. Prior to 13.0.0, PILfont text-width accumulation in src/imaging.c checks positive glyph advances against INTMAX but does not check negative advances against INTMIN. Repeating a signed 16-bit advance of -32768 can therefore execute a signed C integer overflow in...

CVE-2026-96641

The Pillow Python imaging library is vulnerable to a signed C integer overflow in src/_imaging.c prior to version 13.0.0 . The PILfont text-width accumulation logic fails to check negative glyph advances against INT_MIN, allowing repeated 16-bit advances of -32768 to result in a large positive wi...

Red Hat: CVE-2026-96641: pillow: pillow: Denial of Service via integer overflow in text-width calculation

Pillow is a Python imaging library. Prior to 13.0.0, PILfont text-width accumulation in src/imaging.c checks positive glyph advances against INTMAX but does not check negative advances against INTMIN. Repeating a signed 16-bit advance of -32768 can therefore execute a signed C integer overflow in...

PT-2026-129112

Pillow is a Python imaging library. Prior to 13.0.0, PILfont text-width accumulation in src/ imaging.c checks positive glyph advances against INT MAX but does not check negative advances against INT MIN. Repeating a signed 16-bit advance of -32768 can therefore execute a signed C integer overflow...

PT-2026-120819

Name of the Vulnerable Software and Affected Versions Pillow versions prior to 13.0.0 Description An issue exists in the PILfont text-width accumulation within src/ imaging.c where positive glyph advances are checked against INT MAX, but negative advances are not checked against INT MIN. Repeatin...