CVE-2025-66648
`vega-functions` vulnerable to Cross-site Scripting via `setdata` function
Reported by github_m · Published January 5, 2026
vega-functions provides function implementations for the Vega expression language. Prior to version 6.1.1, for sites that allow users to supply untrusted user input, malicious use of an internal function (not part of the public API) could be used to run unintentional javascript (XSS). This issue is fixed in vega-functions `6.1.1`. There is no workaround besides upgrading. Using `vega.expressionInterpreter` as described in CSP safe mode does not prevent this issue.
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| tensorflow-cpu-jupyter | Chainguard | 2.21.0-r8 |
Risk scores
Affected products
| Vendor | Product | Versions |
|---|---|---|
| vega | vega | < 6.1.1 |
| chainguard | tensorflow-cpu-jupyter | 0 |
| chainguard | py3-jupyterlab | 0 |
| vega | vega | 0 |
| wolfi | py3-jupyterlab | 0 |
| chainguard | tensorflow-gpu-jupyter | * |
| npm | vega-functions | 0 |
| wolfi | jupyter-base-notebook | 0 |
| chainguard | jupyter-base-notebook | 0 |
Timeline
- Jan 5, 2026 CVE Published
- Jan 5, 2026 PoC Published (4 in total, the first dated here)
- Jan 6, 2026 EPSS Score (30 in total, the first dated here)
- Jan 6, 2026 CVE Updated
- Mar 10, 2026 Security Advisory
- Mar 26, 2026 Coalition ESS Score (2 in total, the first dated here)
Query this with the API
The same record, from the CLI:
vulnetix vdb vuln CVE-2025-66648
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curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
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