CVE-2026-54057 PUBLISHED

Kitty vulnerable to command injection via unsanitized OSC 21 query reply

Assigner: GitHub_M
Reserved: 11.06.2026 Published: 12.06.2026 Updated: 12.06.2026

Kitty is a cross-platform GPU based terminal. In versions prior to 0.47.3, kitty's OSC 21 (color-control) query reply reflects attacker-controlled bytes, including newlines, into the shell's input without sanitization. Version 0.47.3 fixes the issue.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS Score: 7.3

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Local	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	Present	Availability	High	Availability	None
Privileges Required	None
User Interaction	Passive

CVSS 4.0

Product Status

Vendor	kovidgoyal
Product	kitty
Versions	Version < 0.47.3 is affected

References

https://github.com/kovidgoyal/kitty/security/advisories/GHSA-5gmr-9gwg-hhq6

Problem Types

CWE-94: Improper Control of Generation of Code ('Code Injection') CWE
CWE-150: Improper Neutralization of Escape, Meta, or Control Sequences CWE