CVE-2026-2031: Google Cloud Application Integration: missing authorization in internal APIs
Google reported a missing authorization issue in several internal API endpoints of Google Cloud Application Integration, affecting builds prior to 2026-01-23. The record rates it CVSS v4.0 10 and says an unauthenticated remote attacker could disclose information or execute code. The record shows no KEV listing, no confirmed exploitation in the consulted sources, and no fixed version.
Overview
The record describes CVE-2026-2031 as an improper access control issue (CWE-862, Missing Authorization) in several internal API endpoints of Google Cloud Application Integration. According to the record, these endpoints were inadvertently exposed, and the affected builds are those prior to 2026-01-23. The source is the CNA GoogleCloud, with NVD and CVE.org entries.
Impact
The description states that a remote, unauthenticated attacker could disclose sensitive internal information and execute arbitrary code by sending crafted HTTP requests to the exposed endpoints. The CVSS v4.0 score in the record is 10 (Critical), with high impact on confidentiality, integrity and availability of the vulnerable system. The actual impact in a given environment depends on configuration, which the record does not describe.
Affected products and versions
- Product listed in the record: Google Cloud Internal Integration Platform APIs
- Versions listed: builds before 2026-01-23
- No fixed version is listed in the record.
- The product name in the record differs from the product name in the title, so the mapping between them is unknown.
Exploitation status
The record shows this CVE as not listed in CISA KEV. The SSVC fields report exploitation as none and automatable as no. No confirmed exploitation appears in the sources consulted for this analysis.
Remediation and mitigation
- Identify whether your organization uses Google Cloud Application Integration and whether any deployment predates 2026-01-23.
- Review the vendor's guidance and the release notes linked in the record: Gemini Enterprise release notes, May 07 2026. The record does not confirm that these notes cover this fix.
- Limit network reachability of internal API endpoints so they are not reachable from untrusted networks.
- Restrict access to these services to known identities and networks while you verify your version status.
- Confirm the fixed build with the vendor before closing the risk.
Detection guidance
- Review inventories and network maps for any internal integration endpoints reachable from outside your trust boundary.
- Review access logs for requests to internal integration endpoints that come from unexpected sources or do not match normal application traffic.
- Monitor for unexpected changes or processes on integration hosts, which can indicate code execution.
Limitations of the available information
- The record has no fixed version and no vendor-stated patch details beyond the date threshold.
- The record was marked Awaiting Analysis at the time of the snapshot.
- The EPSS date in the record (2026-10-13) is later than the publication date, so the EPSS values should be treated with caution.
- The record does not describe which endpoints were exposed or how widely customers were affected.
Frequently asked questions
Is CVE-2026-2031 known to be exploited?
The record does not list this CVE in CISA KEV, and no confirmed exploitation appears in the sources consulted. Treat the exposure seriously anyway because the record rates it as critical.
Which Google Cloud builds are affected?
The record lists builds prior to 2026-01-23 for the Google Cloud Internal Integration Platform APIs. Check your deployment dates and confirm the fixed build with the vendor.
This analysis was drafted with AI assistance from verified source data and automatically checked against it.