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CVE-2026-54057— Kitty vulnerable to command injection via unsanitized OSC 21 query reply

Quick assessment

Affected
kovidgoyal kitty
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Kovidgoyal kitty是Kovidgoyal个人开发者开源的一个基于Python的GPU终端仿真软件。 该软件可提供基本的终端功能,并且基于GPU渲染可降低系统负载,采用OpenGL进行渲染,可支持在Linux、Mac上使用。 kovidgoyal kitty 0.47.3之前版本存在输入验证错误漏洞，该漏洞源于OSC 21（颜色控制）查询回复将攻击者控制的字节（包括换行符）反射到shell的输入中而未进行清理。

AI Predicted 5.3 Difficulty: Easy EPSS 0.17% · P6

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 1

VendorProduct Version RangeStatus
kovidgoyal kitty < 0.47.3 affected
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I. Basic Information for CVE-2026-54057

Vulnerability Information
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Vulnerability Title
Kitty vulnerable to command injection via unsanitized OSC 21 query reply
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: CVE Program / CVE List V5
Vulnerability Title
kovidgoyal kitty 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Kovidgoyal kitty是Kovidgoyal个人开发者开源的一个基于Python的GPU终端仿真软件。 该软件可提供基本的终端功能,并且基于GPU渲染可降低系统负载,采用OpenGL进行渲染,可支持在Linux、Mac上使用。 kovidgoyal kitty 0.47.3之前版本存在输入验证错误漏洞，该漏洞源于OSC 21（颜色控制）查询回复将攻击者控制的字节（包括换行符）反射到shell的输入中而未进行清理。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
kovidgoyal kitty < 0.47.3 -

II. Public POCs for CVE-2026-54057

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III. Intelligence Information for CVE-2026-54057

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Vendor Advisories for CVE-2026-54057 (1)

Same Patch Batch · kovidgoyal · 2026-06-12 · 5 CVEs total

CVE-2026-42851 7.8 HIGH @kitty-edit DCS + --color=geninclude vulnerable to Unauthenticated in-process RCE
CVE-2026-54056 7.6 HIGH Kitty has an arbitrary file overwrite via symlink following in `kitten dnd` remote drop st
CVE-2026-54055 5.0 MEDIUM Kitty has an Arbitrary File Write via Symlink Race Condition in File Transmission Protocol
CVE-2026-42850 Kitty has a shell command injection

IV. Related Vulnerabilities

Same product: kitty
Same vendor: kovidgoyal
Same weakness: CWE-94

V. Comments for CVE-2026-54057

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