JSDom improperly allows the loading of local resources, which allows for local files to…
Priority LOW 28Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- Will not fix Red Hat: no fix planned
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.
Summary
JSDom improperly allows the loading of local resources, which allows for local files to be manipulated by a malicious web page when script execution is enabled.
Why it matters now
EPSS 0.0139 72nd percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix Will not fix Red Hat: no fix planned
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | JSDom | JSDom 16.4.0 | — | No fix listed | CNA |
- JSDom Vendor— Affected JSDom 16.4.0 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:jsdom_project:jsdom:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Jsdom Project |
- cpe:2.3:a:jsdom_project:jsdom:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Jsdom Project
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| OpenShift Service Mesh 2.0 | Affected | No fix planned: Will not fix |
| Red Hat OpenShift Container Platform 4 | Affected | No fix planned: Will not fix |
Not affected: 2 products
- OpenShift Service Mesh 2.0
- Red Hat Advanced Cluster Management for Kubernetes 2
Timeline
- 2026-10-02 Threatist record created from CVE-2021-20066
References
Sources
- CVE-2021-20066 · CVE Program
- CVE-2021-20066 · NVD
- FIRST EPSS
- CVE-2021-20066 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences