CVE-2026-54057

EUVD-2026-36579
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.
Code Injection
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.8 HIGH
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 6%
Affected Products (NVD)
VendorProductVersion
kovidgoyalkitty
𝑥
< 0.47.3
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
kitty
bookworm
vulnerable
bullseye
vulnerable
bullseye (security)
vulnerable
forky
0.47.4-1
fixed
sid
0.47.4-1
fixed
trixie
vulnerable
trixie (security)
vulnerable
Common Weakness Enumeration
References
https://github.com/kovidgoyal/kitty/security/advisories/GHSA-5gmr-9gwg-hhq6
https://github.com/kovidgoyal/kitty/security/advisories/GHSA-5gmr-9gwg-hhq6