Vega Expression Language `scale` expression function Cross Site Scripting (GHSA-4vq7-882g-wcg4)

Description

The Vega scale expression function has the ability to call arbitrary functions with a single controlled argument. This can be exploited to escape the Vega expression sandbox in order to execute arbitrary JavaScript.

Recommendation

Update the vega package to the latest compatible version. Followings are version details:

• Affected version(s): < 5.23.0
• Patched version(s): 5.23.0

References

• GHSA-4vq7-882g-wcg4
• github.dev
• vega.github.io
• CVE-2023-26486
• CWE-79
• CAPEC-310
• OWASP 2021-A3
• OWASP 2021-A6

Related Issues

• Vega Cross-Site Scripting (XSS) via expressions abusing toString calls in environments using the VEGA_DEBUG global varia - CVE-2025-59840
• Vega Cross-Site Scripting (XSS) via event filter when not using CSP mode expressionInterpeter (GHSA-rcw3-wmx7-cphr) - CVE-2025-26619
• Vega vulnerable to Cross-site Scripting via RegExp.prototype[@@replace] (GHSA-963h-3v39-3pqf) - CVE-2025-27793
• Vega allows Cross-site Scripting via the vlSelectionTuples function - CVE-2025-25304

Tags:

npm

vega