Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') Affecting bun package, versions *
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applicationsSnyk Learn
Learn about Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerabilities in an interactive lesson.
Start learning- Snyk IDSNYK-JS-BUN-9510752
- published22 Jul 2025
- disclosed23 Mar 2025
- creditLiran Tal
Introduced: 23 Mar 2025
CVE-2025-8022 (opens in a new tab)How to fix?
There is no fixed version for bun.
Overview
Affected versions of this package are vulnerable to Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in the $ shell API due to improper neutralization of user input. An attacker can exploit this by providing specially crafted input that includes command-line arguments or shell metacharacters, leading to unintended command execution.
PoC
import { $ } from "bun";
const userRepository = `--upload-pack=env>hello;`;
const refs = await $`git ls-remote ${userRepository} main`.text();