Command Injection Vulnerability in Kitty Terminal by Kovid Goyal
CVE-2026-42850

7.4HIGH

Key Information:

Vendor

Kovidgoyal

Status
Kitty
Vendor
CVE Published:
12 June 2026

What is CVE-2026-42850?

Kitty Terminal, a cross-platform GPU-accelerated terminal, has a vulnerability that allows command injection through its error handling mechanism prior to version 0.47.0. By leveraging specific escape codes, an attacker can inject commands into the shell environment when a victim connects to a malicious netcat instance. This allows for execution of arbitrary commands on the victim's machine, posing a serious risk to system integrity. Users should upgrade to version 0.47.0 or later to mitigate this security risk.

Affected Version(s)

kitty < 0.47.0

References

https://github.com/kovidgoyal/kitty/security/advisories/G...
x_refsource_CONFIRM

CVSS V4

Score:
7.4
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
High
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.