XSS in Vega

CVE-2025-27793

Vega is a visualization grammar, a declarative format for creating, saving, and sharing interactive visualization designs. In Vega prior to version 5.32.0, corresponding to vega-functions prior to version 5.17.0, users running Vega/Vega-lite JSON definitions could run unexpected JavaScript code when drawing graphs, unless the library was used with the `vega-interpreter`. Vega version 5.32.0 and vega-functions version 5.17.0 fix the issue. As a workaround, use `vega` with expression interpreter.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.005 (38.6th percentile) — read the EPSS interpretation.

Affected products

  • Vega — versions < 5.32.0

Weakness classification (CWE)

References