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01 Record

CVE-2026-93328

Missing Authorization in MCP Toolbox for Databases allows Arbitrary File Read and Write

CriticalPUBLISHEDCNA: GoogleCloud
CNA base score9.3 CVSS v4.0CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/U:Amber

02 Description

Missing Authorization in MCP Toolbox for Databases allows Arbitrary File Read and Write

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.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpacttotalSuccessful exploitation gives total 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
0.52% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 44.3% of scored records. A rank, not a probability.
NVD base score
9.3 (CVSS v4.0), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/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:Amber
NVD analysis status
Awaiting Analysis. NVD last modified this record on 2026-10-26.
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
2026-10-26 14:24Z2 DAYS AGO
Last updated
2026-10-26 16:46Z2 DAYS AGO
Reserved
2026-09-17
Assigning CNA
GoogleCloud
Record state
PUBLISHED
Severity
Critical (CVSS 9.3)
CNA CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/U:Amber
Weaknesses
  • CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')Base
  • CWE-862Missing AuthorizationClass
Data version
5.2
Document digest
dd92e1d7782c2ef8465386534b51a9310ed1182451262039e2e698dea82167db

05 Affected products

VendorProductVersionsPlatforms

06 References

07 Remediation

Upgrade googleapis/mcp-toolbox to version 1.5.0 or later. Configure the security boundaries introduced in v1.5.0 by setting allowedLocalRoots to restrict host file system interactions strictly to designated, isolated directories set allowedBuckets to ensure the tool only reads from and writes to explicit, authorized Google Cloud Storage buckets. Follow the Principle of Least Privilege by running the Toolbox service under an unprivileged OS user account and restricting associated Google Cloud IAM permissions.