Deno
CVE-2024-32477
HIGH
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization OS command sanitization, avoid shell exec
MITRE ATT&CK
2 techniques across 1 tactic: Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 7.4 (HIGH). Attack characteristics: network attack vector, high complexity, no privileges required, no user interaction not required. Public proof-of-concept exploit code is available. |
| Exploit ScenarioDerived | A remote attacker could execute arbitrary operating system commands on the host by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability. |
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Alert meAnalysisAI
Deno is a JavaScript, TypeScript, and WebAssembly runtime with secure defaults. Rated high severity (CVSS 7.4), this vulnerability is remotely exploitable, no authentication required. Public exploit code available and no vendor patch available.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Avoid passing user input to shell commands. Use language-specific APIs instead of shell execution. Apply strict input validation with allowlists.
Affects your stack
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Technical ContextAI · show details
This vulnerability is classified as OS Command Injection (CWE-78), which allows attackers to execute arbitrary operating system commands on the host. 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. Affected products include: Deno.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionNVD
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.
Threat Intelligence Overview
NVD
CVE.org
EPSS
GitHub
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
OS command injection occurs when an application passes unsanitized user input directly into system shell commands.
Affected Products (CPE)NVD
Deno Standard Modules before 0.107.0 allows Code Injection via an untrusted YAML file in certain configurations. Rated c
Deno versions 2.2.0 through 2.2.4 contain an authorization bypass vulnerability in SQLite database handling that allows
Deno is a JavaScript, TypeScript, and WebAssembly runtime. Rated high severity (CVSS 8.8), this vulnerability is low att
Deno is a JavaScript, TypeScript, and WebAssembly runtime. Rated high severity (CVSS 8.8), this vulnerability is low att
Deno is a simple, modern and secure runtime for JavaScript and TypeScript that uses V8 and is built in Rust. Rated high
Command injection on Windows in the Deno JavaScript/TypeScript runtime (versions prior to 2.5.3 and 2.2.15) allows attac
Deno is a JavaScript, TypeScript, and WebAssembly runtime. Rated high severity (CVSS 8.3), this vulnerability is remotel
Command injection in Deno versions prior to 2.6.8 allows unauthenticated remote attackers to execute arbitrary commands
Arbitrary code execution in Deno runtime versions before 2.5.6 allows unauthenticated attackers to bypass shell script e
Deno versions up to 2.6.0 contains a vulnerability that allows attackers to have infinite encryptions (CVSS 7.5).
Versions of the package deno before 1.31.0 are vulnerable to Regular Expression Denial of Service (ReDoS) due to the upg
Deno is a runtime for JavaScript and TypeScript that uses V8 and is built in Rust. Rated high severity (CVSS 7.5), this
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