{"id":"CVE-2026-73222","title":"Claude Code Templates is a CLI tool for configuring and monitoring Claude Code","summary":"Claude Code Templates is a CLI tool for configuring and monitoring Claude Code. Prior to 1.29.4, the Claude Code Studio server launched by the --studio option in cli-tool/src/sandbox-server.js binds to all interfaces on port 3444, permit…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cwe":["CWE-78","CWE-306","CWE-352"],"vendor":"claude-code-templates","product":"claude-code-templates","affected":["claude-code-templates <= 1.29.2"],"patched":["claude-code-templates 1.29.4"],"published":"2026-08-11","updated":"2026-09-09","sourceUpdated":"2026-09-09T20:50:00.950","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-73222","references":[{"url":"https://github.com/davila7/claude-code-templates/blob/main/CHANGELOG.md","label":"security-advisories@github.com"},{"url":"https://github.com/davila7/claude-code-templates/commit/bc4618b07232633c1c0aac12a43e436268d31783","label":"security-advisories@github.com"},{"url":"https://github.com/davila7/claude-code-templates/security/advisories/GHSA-79wm-x847-7cvg","label":"security-advisories@github.com"},{"url":"https://github.com/davila7/claude-code-templates/security/advisories/GHSA-79wm-x847-7cvg","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-73222"},{"url":"https://github.com/advisories/GHSA-79wm-x847-7cvg"}],"tags":["nvd","ghsa","npm"],"epss":0.00247,"epssPercentile":0.16306,"aliases":["GHSA-79wm-x847-7cvg"],"ecosystem":"npm","ingestedAt":"2026-09-03T20:08:06.664Z","slug":"CVE-2026-73222","body":"## Overview\n\nClaude Code Templates is a CLI tool for configuring and monitoring Claude Code. Prior to 1.29.4, the Claude Code Studio server launched by the --studio option in cli-tool/src/sandbox-server.js binds to all interfaces on port 3444, permits cross-origin requests, and requires no authentication. The POST /api/execute endpoint passes the prompt request-body field to executeLocalTask(), and POST /api/install-agent passes the agentName request-body field to a child process. The same unsafe agent field path is reachable from /api/execute through checkAndInstallAgent(). These attacker-controlled values reach child_process.spawn() with shell execution enabled, causing Node.js to construct a shell command in which metacharacters are interpreted. An attacker who can reach the port directly, or who convinces a developer running Studio to visit a malicious website, can execute arbitrary operating-system commands with the developer's privileges and compromise source code, credentials, and local data. This issue is fixed in version 1.29.4.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-73222)\n\nAffected packages:\n\n- `claude-code-templates <= 1.29.2`\n\nPatched in:\n\n- `claude-code-templates 1.29.4`\n\nSource: https://github.com/advisories/GHSA-79wm-x847-7cvg","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}