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CVE-2026-145378.1HighCWE-863

CVE-2026-14537: Authorization Bypass in MCP Toolbox Legacy HTTP Endpoints

Google · mcp-toolbox

Affected: Google mcp-toolbox · Exploitation: unlikely (under 1%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

0.3%probability of exploitation in the next 30 days
16th percentile
050100

Higher than 16% of scored CVEs

8.1HighCVSS 4.0
LowHigh

DescriptionCVE.org

Incorrect Authorization in the direct HTTP API tool invocation endpoint in Google mcp-toolbox versions v1.3.0 and v1.4.0 allows an unauthenticated attacker to invoke tools protected by the scopeRequired feature via sending tool invocation requests through legacy HTTP endpoints when the --enable-api flag is active.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

  • Google · mcp-toolbox1.3.0; v1.4.0

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas
Exploitation
Unlikely (under 1%). EPSS under 1%, or no score yet.
CISA KEV
Not listed
Public check
No public nuclei template
Vendor
Google
Published
July 2026

CoverageNo articles yet

No CyberSIXT article names CVE-2026-14537 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.

References