Category

Cve 2026 9277

Security vulnerabilities and automated fixes for cve 2026 9277 issues

7 posts found

critical4 min

shell-quote 1.8.3: Line Terminator Command Injection (CVE-2026-9277)

CVE-2026-9277 is a critical command injection vulnerability in shell-quote versions before 1.9.0, where unescaped line terminators allow attackers to break out of quoted strings and execute arbitrary shell commands. The fix upgrades the dependency across multiple React Native CLI packages and related libraries through npm overrides.

#command-injection#npm#shell-quote+4 more
A
anupamme
Sep 17, 2026
critical8 min

How Command Injection Happens in Node.js Dependencies and How to Fix It

CVE-2026-9277 is a critical command injection vulnerability in shell-quote versions prior to 1.8.4 that allows attackers to execute arbitrary code by injecting unescaped line terminators into shell commands. This vulnerability affects any Node.js application that uses the vulnerable shell-quote package to construct shell commands from untrusted input. The fix upgrades shell-quote to version 1.8.4, which properly escapes line terminators and neutralizes the injection vector.

#command-injection#node-js#dependency-vulnerability+2 more
A
anupamme
Aug 31, 2026
critical6 min

How Command Injection Happens in JavaScript/Node.js and How to Fix It

CVE-2026-9277 is a critical command injection vulnerability in shell-quote 1.8.3 that allows attackers to execute arbitrary code through unescaped line terminators. The fix upgrades to version 1.9.0, which properly escapes these characters and prevents shell command manipulation.

#command-injection#shell-quote#npm+5 more
A
anupamme
Aug 31, 2026
critical8 min

How Command Injection happens in Node.js shell-quote and how to fix it

CVE-2026-9277 is a critical command injection vulnerability in the `shell-quote` npm package (versions prior to 1.8.4) caused by unescaped line terminators that allow attackers to inject and execute arbitrary shell commands. The fix pins `shell-quote` to `>=1.8.4` via a `pnpm.overrides` entry, ensuring every transitive consumer in the dependency tree receives the patched version. Any Node.js project that processes user-influenced input through `shell-quote` and has not yet upgraded is at risk of

#command-injection#nodejs#npm+3 more
A
anupamme
Aug 26, 2026
high7 min

How Command Injection via Unescaped Line Terminators Happens in Node.js and How to Fix It

The `shell-quote` package (versions prior to 1.9.0) contained a critical command injection vulnerability where unescaped line terminators in shell arguments could be exploited to inject arbitrary commands. This vulnerability was discovered in the docs-site dependency tree and fixed by upgrading to version 1.9.0, which properly escapes line terminators to prevent attackers from breaking out of quoted arguments and executing malicious shell commands.

#command-injection#nodejs#shell-quote+2 more
A
anupamme
Aug 24, 2026
critical6 min

How Command Injection via Unescaped Line Terminators Happens in Node.js and How to Fix It

A critical command injection vulnerability (CVE-2026-9277) was discovered in the shell-quote npm package version 1.8.3, where unescaped line terminators could allow attackers to execute arbitrary code. This fix upgrades shell-quote to version 1.9.0 using npm overrides to ensure all instances in the dependency tree are patched, eliminating the attack vector across the entire application.

#security#command-injection#nodejs+4 more
A
anupamme
Aug 23, 2026
critical7 min

How Arbitrary Code Execution via Command Injection Happens in Node.js shell-quote and How to Fix It

A critical command injection vulnerability (CVE-2026-9277) was discovered in the popular Node.js `shell-quote` package (versions prior to 1.8.4) where unescaped line terminators allowed attackers to inject and execute arbitrary shell commands. The fix upgrades `shell-quote` from version 1.8.1 to 1.8.4, which properly escapes line terminator characters (such as `\n`, `\r`, `\u2028`, and `\u2029`) before passing strings to the shell. This dependency was present in the project's `package-lock.json`

#security#command-injection#javascript+4 more
A
anupamme
Aug 5, 2026