CVE-2026-32260: Deno vulnerable to command Injection via incomplete shell metacharacter blocklist in node:child_process

March 13, 2026

A command injection vulnerability exists in Deno’s node:child_process polyfill (shell: true mode) that bypasses the fix for CVE-2026-27190 (GHSA-hmh4-3xvx-q5hr). An attacker who controls arguments passed to spawnSync or spawn with shell: true can execute arbitrary OS commands, bypassing Deno’s permission system.

Affected versions: Deno v2.7.0, v2.7.1

References

github.com/advisories/GHSA-4c96-w8v2-p28j
github.com/denoland/deno
github.com/denoland/deno/security/advisories/GHSA-4c96-w8v2-p28j
nvd.nist.gov/vuln/detail/CVE-2026-32260

Code Behaviors & Features

Detect and mitigate CVE-2026-32260 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Dependency Scanning using SBOM also detects vulnerabilities from proprietary advisories that this site does not include. Learn more about Dependency Scanning using SBOM →