CVE-2026-42851

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.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/kovidgoyal/kitty/security/advisories/GHSA-w98g-hpvr-r332	Exploit Mitigation Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:kovidgoyal:kitty:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-06-12 20:16

Updated : 2026-06-17 10:48

NVD link : CVE-2026-42851

Mitre link : CVE-2026-42851

CVE.ORG link : CVE-2026-42851

JSON object : View

Products Affected

kovidgoyal

kitty

CWE

CWE-94

Improper Control of Generation of Code ('Code Injection')

CWE-862

Missing Authorization

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