CVE Explorer

CVE-2026-14538

An improper authorization and security-boundary bypass vulnerability in the bigquery-execute-sql tool component of Google mcp-toolbox versions 0.16.1 through 1.4.0 allows an authenticated attacker to bypass allowedDatasets validation checks. The toolbox relies on the BigQuery dry-run API to enforce dataset restrictions, but due to a fail-open logic flaw, it bypasses validation when the API returns an empty array for specialized constructs. This allows the attacker to extract structural DDL schem

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:d85d4781dffe6f7ace08f38deb9d6fe7e01acac415595b8d53d9bd08c261fe3e

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-863","description":"CWE-863 (Incorrect Authorization)","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:6fdb1a3ffb6fdb533f7ce9686ed3c653404c5090ebfd5bcfcc9f1249062398dc · sha256:8d01518bd1a374de… · /containers/cna/problemTypes/0/descriptions/1

{"cweId":"CWE-285","description":"CWE-285 (Improper Authorization)","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:6fdb1a3ffb6fdb533f7ce9686ed3c653404c5090ebfd5bcfcc9f1249062398dc · sha256:8d01518bd1a374de… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion

{"defaultStatus":"unaffected","product":"mcp-toolbox","vendor":"Google","versions":[{"lessThanOrEqual":"1.4.0","status":"affected","version":"0.16.1","versionType":"semver"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:6fdb1a3ffb6fdb533f7ce9686ed3c653404c5090ebfd5bcfcc9f1249062398dc · sha256:8d01518bd1a374de… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":5.7,"baseSeverity":"MEDIUM","exploitMaturity":"UNREPORTED","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"HIGH","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:U","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpac…

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:6fdb1a3ffb6fdb533f7ce9686ed3c653404c5090ebfd5bcfcc9f1249062398dc · sha256:8d01518bd1a374de… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions

{"cweId":"CWE-863","description":"CWE-863 (Incorrect Authorization)","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:6fdb1a3ffb6fdb533f7ce9686ed3c653404c5090ebfd5bcfcc9f1249062398dc · sha256:8d01518bd1a374de… · /containers/cna/problemTypes/0/descriptions/1

{"cweId":"CWE-285","description":"CWE-285 (Improper Authorization)","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:6fdb1a3ffb6fdb533f7ce9686ed3c653404c5090ebfd5bcfcc9f1249062398dc · sha256:8d01518bd1a374de… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion

{"url":"https://github.com/googleapis/mcp-toolbox/pull/3452"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:6fdb1a3ffb6fdb533f7ce9686ed3c653404c5090ebfd5bcfcc9f1249062398dc · sha256:8d01518bd1a374de… · /containers/cna/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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