How severe is CVE-2026-2031?

CVE-2026-2031 has a CVSS 4.0 base score of 10.0, rated critical severity.

Is CVE-2026-2031 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-2031?

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

Does CVE-2026-2031 have an EU (EUVD) identifier?

Yes. CVE-2026-2031 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-30552.

When was CVE-2026-2031 published?

CVE-2026-2031 was published on 2026-05-15 and last updated on 2026-06-17.

CVE-2026-2031

CVE-2026-2031 is a critical-severity vulnerability with a CVSS 4.0 base score of 10.0. 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-862.

Key facts

Severity: Critical (CVSS 4.0 base score 10.0)
EPSS exploit prediction: 1% (40th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-30552
Weakness: CWE-862
Published: 2026-05-15
Last modified: 2026-06-17

Description

An Improper Access Control vulnerability in several internal API endpoints for Google Cloud Application Integration prior to 2026-01-23 allows a remote, unauthenticated attacker to disclose sensitive internal information and execute arbitrary code using specially crafted HTTP requests to inadvertently exposed internal API endpoints.

Frequently asked questions

What is CVE-2026-2031?: An Improper Access Control vulnerability in several internal API endpoints for Google Cloud Application Integration prior to 2026-01-23 allows a remote, unauthenticated attacker to disclose sensitive internal information and execute arbitrary code using specially crafted HTTP requests to inadvertently exposed internal API endpoints.
How severe is CVE-2026-2031?: CVE-2026-2031 has a CVSS 4.0 base score of 10.0, rated critical severity.
Is CVE-2026-2031 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-2031?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-2031 have an EU (EUVD) identifier?: Yes. CVE-2026-2031 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-30552.
When was CVE-2026-2031 published?: CVE-2026-2031 was published on 2026-05-15 and last updated on 2026-06-17.

References

https://docs.cloud.google.com/gemini/enterprise/docs/release-notes#May_07_2026

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