CVE-2026-72913

Kitty: Command injection into the child shell via chained @kitty-echo + @kitty-ssh DCS escape sequences

State: Published
Severity: 7.3 High
Published: Aug 10, 2026
Updated: Aug 11, 2026
Reserved: Aug 10, 2026

Description

Kitty is a cross-platform GPU based terminal. Prior to 0.48.2, the @kitty-echo and @kitty-ssh DCS handlers in kitty/window.py write unauthenticated data to the child shell's stdin, where handle_remote_echo accepts printable shell command characters and handle_remote_ssh calls get_ssh_data in kittens/ssh/utils.py, which emits a newline; chaining the handlers can execute attacker-controlled commands when a user displays untrusted terminal data. This issue is fixed in version 0.48.2.

Scores

CVSS	Score	Vector	Source
4.0	7.3 High	CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N	GitHub_M

Weaknesses

CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')
CWE-93 Improper Neutralization of CRLF Sequences ('CRLF Injection')
CWE-150 Improper Neutralization of Escape, Meta, or Control Sequences

Affected Products

Product	Versions
kittykovidgoyal	< 0.48.2Affected

References

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