CVE-2026-53975 OpenChamber 1.11.7 Unauthenticated RCE via /api/fs/exec
Unauthenticated attackers can execute arbitrary OS commands via the /api/fs/exec endpoint in OpenChamber, leading to full system compromise.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-53975?
CVE-2026-53975 is a critical command injection vulnerability in Bohdan Triapitsyn OpenChamber, published on 6 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-78
Which versions are affected by CVE-2026-53975?
How do I fix CVE-2026-53975?
No fix has been published for CVE-2026-53975 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-53975 being exploited?
There is no known exploitation of CVE-2026-53975 in the wild and no public exploit code.
Sources
Also known as GHSA-xj9x-9j3p-fff9.