What’s Vulnerable › Vulnerabilities

CVE-2025-27793: Vega vulnerable to Cross-site Scripting via RegExp.prototype[@@replace]

• Severity: medium (CVSS 5.3 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-03-27 · updated 2026-06-17
• Weakness: CWE-79

Description

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.

Affected products

• vega: before 5.32.0

References

• https://github.com/vega/vega/commit/694560c0aa576df8b6c5f0f7d202ac82233e6966
• https://github.com/vega/vega/releases/tag/v5.32.0
• https://github.com/vega/vega/security/advisories/GHSA-963h-3v39-3pqf
• https://vega.github.io/vega/usage/interpreter

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