CVE-2026-106115

The ImageSharp 2D graphics library (versions 2.1.0 through 4.1.2 ) is vulnerable to an out-of-bounds write in the TIFF CCITT Group 4 encoder . The root cause is that T6BitCompressor.CompressStrip can emit encoded row data and end-of-facsimile-block codes exceeding the buffer size allocated by Wid...

CVE-2026-106115 ImageSharp: TIFF CCITT T6 encoder writes beyond an undersized output buffer

ImageSharp is a 2D graphics library. From 2.1.0 until 4.1.2, the TIFF CCITT Group 4 encoder allocates Width times rowsPerStrip bytes even though T6BitCompressor.CompressStrip can emit encoded row data and two 12-bit end-of-facsimile-block codes beyond that capacity. TiffCcittCompressor.WriteCode...