OpenPanel js-runtime through 2.3.0 JavaScript Template Sandbox Escape RCE
Priority HIGH 76CWE-94Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- 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-94.
Summary
OpenPanel js-runtime through 2.3.0 contains a sandbox escape vulnerability in the JavaScript webhook template validator that fails to block computed member access to constructor chains. Attackers with project write access can create webhook templates using computed property notation to access Function constructor and execute arbitrary code in the worker process.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00666 52nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- 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 |
|---|---|---|---|---|---|
| Openpanel-dev | openpanel | up to 2.3.0 | — | No fix listed | CNA |
- openpanel VendorOpenpanel-dev Affected up to 2.3.0 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-93985
- 2026-10-03 Alias added: GHSA-rqpr-2wvr-29pf
References
More Openpanel-dev vulnerabilities
- TI-2026-80976 Sandbox escape in OpenPanel webhook JavaScript templates allows code execution CVSS 4.0HIGH 8.7
- TI-2026-80973 SQL injection in OpenPanel ClickHouse query lets users read other tenants' data CVSS 4.0HIGH 8.6
- TI-2026-80981 Missing authentication in OpenPanel Bull Board worker dashboard CVSS 4.0MEDIUM 6.9
- TI-2026-80975 Missing authorization in OpenPanel exposes project chart annotations CVSS 4.0MEDIUM 6.9
- TI-2026-63243 OpenPanel API through 2.3.0 Authentication Bypass via Unverified Client Secret CVSS 4.0MEDIUM 6.9
- TI-2026-58738 OpenPanel before 2.3.0 Unauthenticated XSS via SVG Favicon Proxy CVSS 4.0HIGH 8.4
Sources
- CVE-2026-93985 · CVE Program
- CVE-2026-93985 · NVD
- FIRST EPSS
- GHSA-rqpr-2wvr-29pf · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences