GHSA-332P-7HRC-92WF Pillow: Heap buffer overflow in _tiffWriteProc when saving TIFF to BytesIO

============================================================================ Heap buffer overflow in tiffWriteProc when saving TIFF to BytesIO Location: src/libImaging/TiffDecode.c:94 in tiffWriteProc Commit: a707c6b21c313880d0771e54965d142dd42358b6...

EUVD-2026-104603

Pillow: Heap buffer overflow in tiffWriteProc when saving TIFF to BytesIO...

Pillow: Heap buffer overflow in _tiffWriteProc when saving TIFF to BytesIO

============================================================================ Heap buffer overflow in tiffWriteProc when saving TIFF to BytesIO Location: src/libImaging/TiffDecode.c:94 in tiffWriteProc Commit: a707c6b21c313880d0771e54965d142dd42358b6...

PYSEC-2026-4343

Pillow is a Python imaging library. Prior to 13.0.0 on Windows, src/PIL/WmfImagePlugin.py passes unchecked 32-bit WMF or EMF dimensions to the native drawwmf handler in src/display.c. The handler sizes a DIB allocation from 16-bit-truncated bcWidth and bcHeight fields but copies pixel data using...

PYSEC-2026-4343

Pillow is a Python imaging library. Prior to 13.0.0 on Windows, src/PIL/WmfImagePlugin.py passes unchecked 32-bit WMF or EMF dimensions to the native drawwmf handler in src/display.c. The handler sizes a DIB allocation from 16-bit-truncated bcWidth and bcHeight fields but copies pixel data using...

CVE-2026-96644

Pillow is a Python imaging library. Prior to 13.0.0 on Windows, src/PIL/WmfImagePlugin.py passes unchecked 32-bit WMF or EMF dimensions to the native drawwmf handler in src/display.c. The handler sizes a DIB allocation from 16-bit-truncated bcWidth and bcHeight fields but copies pixel data using...

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...

UBUNTU-CVE-2026-96642

Pillow is a Python imaging library. Prior to 13.0.0, the TarIO initializer in src/PIL/TarIO.py accepts a negative octal member size and computes a backward seek that returns to the same 512-byte header. When the requested member name does not match, the parser repeatedly reads that header, consum...

CVE-2026-96778 Pillow: Heap buffer overflow writing JPEG comment after ICC profile fills buffer

Pillow is a Python imaging library. From 9.4.0 until 13.0.0, ImagingJpegEncode in src/libImaging/JpegEncode.c can call jpegwritemarker for a JPEG COM comment when an ICC profile has exactly filled the 65536-byte encoder buffer. libjpeg writes one byte before checking the exhausted freeinbuffer...

CVE-2026-96778

The Pillow Python imaging library (versions 9.4.0 through 13.0.0 ) contains a heap buffer overflow in src/libImaging/JpegEncode.c. The ImagingJpegEncode() function can call jpeg_write_marker() for a JPEG COM comment when an ICC profile exactly fills the 65536-byte encoder buffer. Due to libjpeg w...

CVE-2026-96778 Pillow: Heap buffer overflow writing JPEG comment after ICC profile fills buffer

Pillow is a Python imaging library. From 9.4.0 until 13.0.0, ImagingJpegEncode in src/libImaging/JpegEncode.c can call jpegwritemarker for a JPEG COM comment when an ICC profile has exactly filled the 65536-byte encoder buffer. libjpeg writes one byte before checking the exhausted freeinbuffer...

CVE-2026-96778 Pillow: Heap buffer overflow writing JPEG comment after ICC profile fills buffer

Pillow is a Python imaging library. From 9.4.0 until 13.0.0, ImagingJpegEncode in src/libImaging/JpegEncode.c can call jpegwritemarker for a JPEG COM comment when an ICC profile has exactly filled the 65536-byte encoder buffer. libjpeg writes one byte before checking the exhausted freeinbuffer...

rsyslog: rsyslog: Denial of service via heap buffer overflow in RainerScript replace() function

A flaw was found in rsyslog. An unauthenticated remote attacker can trigger a heap buffer overflow in the RainerScript replace function by sending specially crafted syslog messages. This vulnerability arises from an incorrect buffer size calculation during string replacement, causing memory...

Important: Red Hat Security Advisory: rsyslog security update

An update for rsyslog is now available for Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions and Red Hat Enterprise Linux 8.8 Telecommunications Update Service. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring...

CVE-2026-96644

Pillow is a Python imaging library. Prior to 13.0.0 on Windows, src/PIL/WmfImagePlugin.py passes unchecked 32-bit WMF or EMF dimensions to the native drawwmf handler in src/display.c. The handler sizes a DIB allocation from 16-bit-truncated bcWidth and bcHeight fields but copies pixel data using...

CVE-2026-96644

Pillow is a Python imaging library. Prior to 13.0.0 on Windows, src/PIL/WmfImagePlugin.py passes unchecked 32-bit WMF or EMF dimensions to the native drawwmf handler in src/display.c. The handler sizes a DIB allocation from 16-bit-truncated bcWidth and bcHeight fields but copies pixel data using...

CLSA-2026-1792562667 gstreamer1-plugins-bad-free: Fix of 2 CVEs

CVE-2026-3082: jpegparser: fix heap buffer overflow by checking the Huffman table length against its storage before copying it - CVE-2026-59692: dtls: fix stack buffer overflow by allocating the buffer for the peer certificate subject DN to its printed length...

CLSA-2026-1792536927 libevent: Fix of 5 CVEs

CVE-2026-63383: fix out-of-bounds read in decodetaginternal - CVE-2026-63384: reject payload lengths above INTMAX in evtagunmarshalheader - CVE-2026-63387: fix off-by-one stack buffer overflow in dnsnametolabels - CVE-2026-63385: reject HTTP header values containing CR or LF - CVE-2026-63382:...

CLSA-2026-1792612080 gawk: Fix of 3 CVEs

CVE-2023-4156: builtin.c formattree: when collecting positional field widths or precisions, check for wrap around to negative values - CVE-2026-40469: builtin.c subcommon: check for overflow in the result buffer size calculation using 64-bit math, failing with a fatal error instead of corrupting...