Command injection in kitty - #VU140702
Published: August 1, 2026
Vulnerability identifier: #VU140702
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: N/A
CWE-ID: CWE-77
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Affected software:
kitty
kitty
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary commands.
The vulnerability exists due to command injection in the @kitty-echo and @kitty-ssh DCS handlers when processing untrusted DCS escape sequences. A remote attacker can send specially crafted escape sequences to execute arbitrary commands.
User interaction is required to display or cat untrusted data in a vulnerable terminal session.
Remediation
Install security update from vendor's website.