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01 Record

CVE-2026-12879

Cross-Tenant Data Exfiltration in Apigee via BigQuery Confused Deputy

MediumPUBLISHEDCNA: GoogleCloud
CNA base score5.9 CVSS v4.0CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:L/SI:L/SA:L/U:Clear

02 Description

Cross-Tenant Data Exfiltration in Apigee via BigQuery Confused Deputy

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.30% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 22.4% of scored records. A rank, not a probability.
NVD base score
5.9 (CVSS v4.0), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Clear
NVD analysis status
Awaiting Analysis. NVD last modified this record on 2026-10-25.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-07-09 12:56Z3 MO AGO
Last updated
2026-07-09 13:42Z3 MO AGO
Reserved
2026-06-22
Assigning CNA
GoogleCloud
Record state
PUBLISHED
Severity
Medium (CVSS 5.9)
CNA CVSS vector
CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:L/SI:L/SA:L/U:Clear
Weaknesses
  • CWE-441Unintended Proxy or Intermediary ('Confused Deputy')Class
  • CWE-610Externally Controlled Reference to a Resource in Another SphereClass
Data version
5.2
Document digest
a03ce6a58377b18afe3669942f6736e280419a9306334e0b46c10bd9ba1bc8e4

05 Affected products

VendorProductVersionsPlatforms
Google CloudApigee0 to < 2026-06-12—

06 References