OpenChamber 1.11.7 Unauthenticated RCE via /api/fs/exec
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-78.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Bohdan Triapitsyn | OpenChamber | up to 1.11.7 | — | No fix listed | CNA |
- OpenChamber VendorBohdan Triapitsyn Affected up to 1.11.7 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-53975
- 2026-10-03 Alias added: GHSA-xj9x-9j3p-fff9
References
Patch 1
Other 1
More Bohdan Triapitsyn vulnerabilities
- TI-2026-38936 OpenChamber 1.11.7 Path Traversal File Read via allowOutsideWorkspace Parameter CVSS 4.0CRITICAL 9.3
- TI-2026-38937 OpenChamber 1.11.7 Unauthenticated DoS via /api/system/shutdown CVSS 4.0HIGH 8.7
Sources
- CVE-2026-53975 · CVE Program
- CVE-2026-53975 · NVD
- FIRST EPSS
- GHSA-xj9x-9j3p-fff9 · GitHub Advisory Database · CC BY 4.0
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