CVE-2026-42851

@kitty-edit DCS + --color=geninclude vulnerable to Unauthenticated in-process RCE

State: Published
Severity: 7.8 High
Published: Jun 12, 2026
Updated: Jun 16, 2026
Reserved: Apr 30, 2026

Description

Kitty is a cross-platform GPU based terminal. In versions prior to 0.47.0, a program able to write bytes to a kitty terminal — a remote SSH peer, a downloaded file viewed with `cat`, a log line, an email body rendered in `less`, an issue body in a TUI, etc. — can cause kitty to execute attacker-supplied Python inside the running kitty process, with the user's full privileges. There is no approval prompt, no remote-control permission requirement, no shell-integration interaction, no clipboard touch, and no editor interaction. Version 0.47.0 fixes the issue.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H	GitHub_M

Weaknesses

CWE-94 Improper Control of Generation of Code ('Code Injection')
CWE-862 Missing Authorization

Affected Products

Product	Versions
kittykovidgoyal	< 0.47.0Affected

References

https://github.com/kovidgoyal/kitty/security/advisories/GHSA-w98g-hpvr-r332

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