Cross-site scripting in vega
Priority MEDIUM 41CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Partial Red Hat: 1 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-79.
Summary
Vega is a visualization grammar, a declarative format for creating, saving, and sharing interactive visualization designs. Vega in an npm package. In Vega before version 5.17.3 there is an XSS vulnerability in Vega expressions. Through a specially crafted Vega expression, an attacker could execute arbitrary javascript on a victim's machine. This is fixed in version 5.17.3
Why it matters now
EPSS 0.01713 77th percentileScored 2026-11-07
Fix Partial vega (vega): 5.17.3vega (npm): 5.17.3Red Hat: 1 without a fix
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 |
|---|---|---|---|---|---|
| vega | vega | before 5.17.3 | 5.17.3 | Patch available | CNA |
| — | vega (npm) | before 5.17.3 | 5.17.3 | Patch available | GHSA-r2qc-w64x-6j54 |
- vega Vendorvega Affected before 5.17.3 Fixed in 5.17.3 Patch available CNA
- vega (npm) Vendor— Affected before 5.17.3 Fixed in 5.17.3 Patch available GHSA-r2qc-w64x-6j54
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:vega_project:vega:*:*:*:*:*:node.js:*:* | before 5.17.3 | Vulnerable | Vega Project |
- cpe:2.3:a:vega_project:vega:*:*:*:*:*:node.js:*:* Versions before 5.17.3 Vulnerable ·Vega Project
Remediation
- Fix · CNA vega (vega) Fixed in 5.17.3
- Fix · GHSA-r2qc-w64x-6j54 vega (npm) Fixed in 5.17.3 Advisory →
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat OpenShift Container Platform 4 | Affected | No fix planned: Will not fix |
Not affected: 2 products
- Red Hat OpenShift Container Platform 3.11
- Red Hat OpenShift Container Platform 4
Timeline
- 2026-10-02 Threatist record created from CVE-2020-26296
- 2026-10-03 Alias added: GHSA-r2qc-w64x-6j54
References
More vega vulnerabilities
- TI-2025-40262 Cross-site scripting in vega CVSS 3.1CRITICAL 9.3
- TI-2025-18958 Vega allows Cross-site Scripting via the vlSelectionTuples function CVSS 4.0MEDIUM 6.9
- TI-2025-37279 Cross-site scripting in vega CVSS 3.1HIGH 8.1
- TI-2025-19556 Vega Cross-Site Scripting (XSS) via event filter when not using CSP mode `expressionInterpeter` CVSS 4.0MEDIUM 5.3
- TI-2026-02866 VEGA: Privilege escalation through unsecured configuration interface in VEGAPULS devices CVSS 3.1HIGH 7.5
- TI-2025-41032 `vega-functions` vulnerable to Cross-site Scripting via `setdata` function CVSS 3.1HIGH 7.2
Sources
- CVE-2020-26296 · CVE Program
- CVE-2020-26296 · NVD
- FIRST EPSS
- GHSA-r2qc-w64x-6j54 · GitHub Advisory Database · CC BY 4.0
- CVE-2020-26296 · 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