CVE-2026-80431

Out-of-bounds Write in the natural width branch of the text sizing protocol in kitty from 0.40.0 before 0.49.0 allows a program writing to the terminal to write past the end of a fixed-size buffer, because screenhandlemulticellcommand in kitty/screen.c appends each codepoint of a grapheme cluster...

CVE-2026-80431

The kitty terminal (versions 0.40.0 to before 0.49.0 ) contains an out-of-bounds write vulnerability in the natural width branch of the text sizing protocol. The root cause is located in screen_handle_multicell_command() within kitty/screen.c, where the application appends codepoints to a fixed-s...

EUVD-2026-87088

Out-of-bounds Write in the natural width branch of the text sizing protocol in kitty from 0.40.0 before 0.49.0 allows a program writing to the terminal to write past the end of a fixed-size buffer, because screenhandlemulticellcommand in kitty/screen.c appends each codepoint of a grapheme cluster...

CVE-2026-95832

Improper Neutralization of Special Elements in Output Used by a Downstream Component in the colour control escape code handler in kitty from 0.47.3 before 0.49.0 allows a program writing to the terminal to execute an arbitrary command in the user's shell, because colorcontrol in kitty/window.py...

CVE-2026-95832 Reflected unknown field names in the kitty colour control escape code allow command execution in the user's shell

Improper Neutralization of Special Elements in Output Used by a Downstream Component in the colour control escape code handler in kitty from 0.47.3 before 0.49.0 allows a program writing to the terminal to execute an arbitrary command in the user's shell, because colorcontrol in kitty/window.py...

CVE-2026-95832

The kitty terminal emulator (versions 0.47.3 before 0.49.0 ) is vulnerable to arbitrary command execution due to improper neutralization of special elements in the colour control escape code handler . The flaw exists because color_control() in kitty/window.py includes unrecognised field names in ...