How severe is CVE-2026-3259?

CVE-2026-3259 has a CVSS 4.0 base score of 7.1, rated high severity.

Is CVE-2026-3259 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-3259?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-3259 have an EU (EUVD) identifier?

Yes. CVE-2026-3259 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-25203.

When was CVE-2026-3259 published?

CVE-2026-3259 was published on 2026-04-23 and last updated on 2026-06-17.

CVE-2026-3259

CVE-2026-3259 is a high-severity vulnerability with a CVSS 4.0 base score of 7.1. 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-209.

Key facts

Severity: High (CVSS 4.0 base score 7.1)
EPSS exploit prediction: 0% (13th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-25203
Weakness: CWE-209
Published: 2026-04-23
Last modified: 2026-06-17

Description

A Generation of Error Message Containing Sensitive Information vulnerability in the Materialized View Refresh mechanism in Google BigQuery on Google Cloud Platform allows an authenticated user to potentially disclose sensitive data using a crafted materialized view that triggers a runtime error during the refresh process. This vulnerability was patched on 29 January 2026, and no customer action is needed.

Frequently asked questions

What is CVE-2026-3259?: A Generation of Error Message Containing Sensitive Information vulnerability in the Materialized View Refresh mechanism in Google BigQuery on Google Cloud Platform allows an authenticated user to potentially disclose sensitive data using a crafted materialized view that triggers a runtime error during the refresh process. This vulnerability was patched on 29 January 2026, and no customer action is needed.
How severe is CVE-2026-3259?: CVE-2026-3259 has a CVSS 4.0 base score of 7.1, rated high severity.
Is CVE-2026-3259 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-3259?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-3259 have an EU (EUVD) identifier?: Yes. CVE-2026-3259 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-25203.
When was CVE-2026-3259 published?: CVE-2026-3259 was published on 2026-04-23 and last updated on 2026-06-17.

References

https://docs.cloud.google.com/bigquery/docs/release-notes/#April_15_2026

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