🛡️ CVE-2024-32477
🟠 CVSS 7.7 — High ⚠️ Exploit Public CWE-78 NVD
7.7
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Deno is a JavaScript, TypeScript, and WebAssembly runtime with secure defaults. By using ANSI escape sequences and a race between `libc::tcflush(0, libc::TCIFLUSH)` and reading standard input, it's possible to manipulate the permission prompt and force it to allow an unsafe action regardless of the user input. Some ANSI escape sequences act as a info request to the master terminal emulator and the terminal emulator sends back the reply in the PTY channel. standard streams also use this channel to send and get data. For example the `\033[6n` sequence requests the current cursor position. These sequences allow us to append data to the standard input of Deno. This vulnerability allows an attacker to bypass Deno permission policy. This vulnerability is fixed in 1.42.2.

Details

Severity HIGH
CVSS Score 7.7
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CWE CWE-78
Public Exploit ⚠️ Yes
Source NVD
Published 2024-04-18
Updated 2026-06-02
Modified 2025-09-04
Fix URL N/A

Affected Packages

Software From version Fixed in
deno — 1.42.2

Similar Threats

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