CVE-2026-33019

libsixel is a SIXEL encoder/decoder implementation derived from kmiya's sixel. Versions 1.8.7 and prior contain an integer overflow leading to an out-of-bounds heap read in the --crop option handling of img2sixel, where positive coordinates up to INTMAX are accepted without overflow-safe bounds...

CVE-2026-33019 libsixel: Integer overflow leads to Out-of-bounds Read in img2sixel

libsixel is a SIXEL encoder/decoder implementation derived from kmiya's sixel. Versions 1.8.7 and prior contain an integer overflow leading to an out-of-bounds heap read in the --crop option handling of img2sixel, where positive coordinates up to INTMAX are accepted without overflow-safe bounds...

CVE-2026-33019

libsixel is a SIXEL encoder/decoder implementation derived from kmiya's sixel. Versions 1.8.7 and prior contain an integer overflow leading to an out-of-bounds heap read in the --crop option handling of img2sixel, where positive coordinates up to INTMAX are accepted without overflow-safe bounds...

PT-2026-32926

Name of the Vulnerable Software and Affected Versions libsixel versions prior to 1.8.7-r1 Description An integer overflow exists in the handling of the '--crop' option in img2sixel. When positive coordinates up to INT MAX are provided, the sixel encoder do clip function fails to perform...