CVE-2026-53975: Bohdan Triapitsyn OpenChamber · OS Command Injection
Affects Bohdan Triapitsyn OpenChamberSource CVE Database V5
Not known to be exploited · CVSS 9.3 Critical.
Data as of 5 Nov 2026, 00:01 UTC
- EPSS
- 1.6% chance of exploitation in 30 days – higher than 76% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 6 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Bohdan TriapitsynOpenChamber | Affected
| Fixed in– |
AI-suggested
Until a patch is available, it is recommended to configure the UI_PASSWORD environment variable to enable authentication middleware and prevent unauthenticated access to the /api/fs/exec endpoint. Restrict network access to the application to trusted users only and monitor for suspicious POST requests targeting this endpoint.
Description
OpenChamber 1.11.7 has a critical unauthenticated remote code execution vulnerability via the /api/fs/exec endpoint. Attackers can send crafted POST requests that execute arbitrary shell commands because the application passes commands directly to Node.js spawn() without validation. The default Docker deployment disables authentication, allowing remote attackers to run OS commands as the application user and receive full command output.