CVE-2026-72913

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

Published Aug 10, 2026 CVSS 4.0 · 7.3 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Weaknesses CWE-78
References
Metrics threat_severity

None

cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

threat_severity

Important

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Kovidgoyal
Kovidgoyal kitty
Vendors & Products Kovidgoyal
Kovidgoyal kitty
Type Values Removed Values Added
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.
Title Kitty: Command injection into the child shell via chained @kitty-echo + @kitty-ssh DCS escape sequences
Weaknesses CWE-150
CWE-77
CWE-93
References
Metrics cvssV4_0

{'score': 7.3, 'vector': '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'}

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Aug 11, 2026, 3:59 PM
Reserved
Aug 10, 2026, 5:57 PM
Status
Deferred
Published
Aug 10, 2026, 9:17 PM
Modified
Oct 23, 2026, 7:10 PM
Severity
Important
Public date
Aug 10, 2026, 9:07 PM