CVE-2026-53975
CriticalCVSS 9.8Summary
Unauthenticated remote code execution vulnerability in OpenChamber 1.11.7, allowing remote attackers to execute arbitrary shell commands by sending crafted POST requests to /api/fs/exec, which passes commands verbatim to Node.js spawn() without validation.
Risk Assessment
An attacker can execute arbitrary OS commands as the application user, potentially leading to full system compromise and data leakage.
Recommendation
Update OpenChamber to a patched version or configure UI_PASSWORD to enable authentication, and restrict access to the /api/fs/exec endpoint.
Original NVD description (English source)
OpenChamber 1.11.7 contains an unauthenticated remote code execution vulnerability that allows remote attackers to execute arbitrary shell commands by sending crafted POST requests to the /api/fs/exec endpoint, which passes commands verbatim to Node.js spawn() without any allowlist, blocklist, or argument validation. The authentication middleware becomes a no-op when UI_PASSWORD is not configured, matching the default Docker deployment, enabling attackers to execute arbitrary OS commands as the application user and retrieve full command output including stdout, stderr, and exit code from the server response.