CVE-2025-26619: Vega is a visualization grammar, a declarative format for creating, saving, and sharing interactive visualizat

Routine

MEDIUM 6.1UPGRADEUPGRADE

CVE-2025-26619 is a medium-severity flaw (CVSS 6.1) affecting vega-functions, vega. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.expressionIn

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.4% (top 71%)
CISA exploited list	No
Weakness	CWE-79
Published	2025-03-27
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: vega project · vega-functions project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-03-27 14:15 UTCPublished CVE record published
2026-06-17 09:02 UTCUpdated Record last modified

vega-functions project vega-functions UPGRADE

Affected: < 5.16.0

Fixed in: 5.16.0

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls vega-functions

2. UPGRADE to 5.16.0

npm install vega-functions@">=5.16.0"

vega project vega UPGRADE

Affected: < 5.31.0

Fixed in: 5.31.0

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls vega

2. UPGRADE to 5.31.0

npm install vega@">=5.31.0"

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-26619?

vega-functions: upgrade to 5.16.0; vega: upgrade to 5.31.0. Exact commands for each OS are on this page.

Is CVE-2025-26619 being exploited?

CVE-2025-26619 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-26619 affect?

CVE-2025-26619 affects vega-functions, vega. Severity is medium (CVSS 6.1). 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 fr

How urgent is CVE-2025-26619?

Priority 34/100. Public exploit reference

Related CVEs

CVE-2025-66648 HIGH 7.2 UPGRADE vega-functions provides function implementations for the Vega expression language

References

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