kovidgoyal Kitty up to 0.48.1 DCS Handlers kitty/window.py handle_remote_echo os command injection

Summaryinfo

A vulnerability marked as critical has been reported in kovidgoyal Kitty up to 0.48.1. Impacted is the function handle_remote_echo of the file kitty/window.py of the component DCS Handlers. Performing a manipulation results in os command injection. This vulnerability is cataloged as CVE-2026-72913. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability classified as critical has been found in kovidgoyal Kitty up to 0.48.1. This affects the function handle_remote_echo of the file kitty/window.py of the component DCS Handlers. The manipulation with an unknown input leads to a os command injection vulnerability. CWE is classifying the issue as CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-72913 since 08/10/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1202 for this issue.

Upgrading to version 0.48.2 eliminates this vulnerability.

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Productinfo

Vendor

• kovidgoyal

Name

• Kitty

Version

• 0.48.0
• 0.48.1

Website

• Product: https://github.com/kovidgoyal/kitty/

CPE 2.3info

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CPE 2.2info

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