How severe is CVE-2025-26619?

CVE-2025-26619 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2025-26619 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-26619?

CVE-2025-26619 primarily affects Vega-functions Project Vega-functions. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-26619?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-26619 have an EU (EUVD) identifier?

Yes. CVE-2025-26619 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-8424.

When was CVE-2025-26619 published?

CVE-2025-26619 was published on 2025-03-27 and last updated on 2026-06-17.

CVE-2025-26619

CVE-2025-26619 is a medium-severity vulnerability in Vega-functions Project Vega-functions with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v4: 5.3
EPSS exploit prediction: 0% (24th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-8424
Weakness: CWE-79
Affected product: Vega-functions Project Vega-functions
Published: 2025-03-27
Last modified: 2026-06-17

Description

Vega is a visualization grammar, a declarative format for creating, saving, and sharing interactive visualization designs. In `vega` 5.30.0 and lower and in `vega-functions` 5.15.0 and lower , it was possible to call JavaScript functions from the Vega expression language that were not meant to be supported. The issue is patched in `vega` `5.31.0` and `vega-functions` `5.16.0`. Some workarounds are available. Run `vega` without `vega.expressionInterpreter`. This mode is not the default as it is slower. Alternatively, using the interpreter described in CSP safe mode (Content Security Policy) prevents arbitrary Javascript from running, so users of this mode are not affected by this vulnerability.

Frequently asked questions

What is CVE-2025-26619?: Vega is a visualization grammar, a declarative format for creating, saving, and sharing interactive visualization designs. In `vega` 5.30.0 and lower and in `vega-functions` 5.15.0 and lower , it was possible to call JavaScript functions from the Vega expression language that were not meant to be supported. The issue is patched in `vega` `5.31.0` and `vega-functions` `5.16.0`. Some workarounds are available. Run `vega` without `vega.expressionInterpreter`. This mode is not the default as it is slower. Alternatively, using the interpreter described in CSP safe mode (Content Security Policy) prevents arbitrary Javascript from running, so users of this mode are not affected by this vulnerability.
How severe is CVE-2025-26619?: CVE-2025-26619 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2025-26619 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-26619?: CVE-2025-26619 primarily affects Vega-functions Project Vega-functions. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-26619?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-26619 have an EU (EUVD) identifier?: Yes. CVE-2025-26619 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-8424.
When was CVE-2025-26619 published?: CVE-2025-26619 was published on 2025-03-27 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:vega-functions_project:vega-functions:*:*:*:*:*:node.js:*:*
cpe:2.3:a:vega_project:vega:*:*:*:*:*:node.js:*:*

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