CVE-2026-95832— Kitty终端反射命令执行漏洞
一分钟漏洞结论
影响对象
Kovid Goyal kitty
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
以下是该漏洞描述信息的中文翻译： 在 kitty 终端模拟器 0.47.3 至 0.49.0 版本之前（不含 0.49.0）的颜色控制转义码处理程序中，存在一个“在下游组件使用的输出中未正确中和特殊元素”的安全漏洞。该漏洞允许向终端写入数据的程序在用户 Shell 中执行任意命令。原因是 kitty/window.py 中的 color_control() 函数在对未识别字段名称的查询做出响应时，会将该字段名称直接放入回复内容中；随后，kitty/screen.c 中的 write_escape_code_to_c
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一、 漏洞 CVE-2026-95832 基础信息
漏洞信息
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Vulnerability Title
Reflected unknown field names in the kitty colour control escape code allow command execution in the user's shell
来源: CVE Program / CVE List V5
Vulnerability Description
Improper Neutralization of Special Elements in Output Used by a Downstream Component in the colour control escape code handler in kitty from 0.47.3 before 0.49.0 allows a program writing to the terminal to execute an arbitrary command in the user's shell, because color_control() in kitty/window.py answers a query for an unrecognised field name by placing that field name into the reply, and write_escape_code_to_child() in kitty/screen.c then writes the reply to the pseudoterminal master, where it is not distinguishable from input typed by the user, without neutralising it for the shell that reads it. The payload is reduced to printable ASCII before the field name is echoed, which is the restriction introduced in 0.47.3 as the fix for CVE-2026-54057, and the record and field separators ; and = are consumed as delimiters, but every other printable character survives, which is sufficient to compose a shell command. A newline is available from handle_remote_ssh() in kitty/window.py, which writes the bytes yielded by get_ssh_data() in kittens/ssh/utils.py, the first of which begin with a newline, to the pseudoterminal master before any credential carried in the request is checked. The reply is framed as an OSC sequence carrying the escape code number, the field name, and the literal value ?. This results in execution of an attacker-chosen command with the privileges of the user running the terminal.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
来源: CVE Program / CVE List V5
Vulnerability Type
输出中的特殊元素转义处理不恰当(注入)
来源: CVE Program / CVE List V5
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| Kovid Goyal | kitty | 0.47.3 ~ 0.49.0 | - |
|
二、漏洞 CVE-2026-95832 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-95832 其他参考 (1)
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🔗 CVE Record: CVE-2026-54057 related
CVE-2026-95832 其他参考 (4)
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https://github.com/kovidgoyal/kitty/releases/tag/v0.49.0 release-notes
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https://secur0.com/en/cna/cve-list/cve-2026-95832-kitty-color-control-command-execution third-party-advisory technical-description
同批安全公告 · Kovid Goyal · 2026-09-25 · 共 6 条
| CVE-2026-80431 | 6.8 MEDIUM | Kitty 终端越界写入漏洞 |
| CVE-2026-80432 | 6.0 MEDIUM | Kitty拖放协议缺失授权漏洞 |
| CVE-2026-95835 | 5.6 MEDIUM | Kitty Askpass 共享内存对象所有权检查缺失漏洞 |
| CVE-2026-80430 | 4.6 MEDIUM | Kitty拖放协议链接解析不当导致任意文件创建漏洞 |
| CVE-2026-95834 | 4.6 MEDIUM | Kitty 拖拽协议释放后使用漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2026-95832
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