AI and data stack advisories

Severe, 6 weeks1496Projects326

1496 severe, 6 weeks · 326 projects

GoogleCVE-2026-14537

Google mcp-toolbox: improper authorization

Google

CVE-2026-14537 · Published Jul 31, 2026 · updated Aug 8, 2026

High8.1
No fix yet
Google advisory

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 versions

PackageAffectedFixed in
mcp-toolbox
Product
<= 1.3.0No fix yet
<= v1.4.0No fix yet
Details and references
CVSS 4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/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:X
Severity from
the vendor (its own CVE record or advisory)
Weakness
CWE-863

More Google advisories

All Google
High 8.0Jul 31Google mcp-toolbox: authentication bypassCVE-2026-14541no fix yetHigh 8.0Jul 31Google mcp-toolbox: server-side request forgeryCVE-2026-14540no fix yetMedium 5.7Jul 31Google mcp-toolbox: improper authorizationCVE-2026-14538no fix yetMedium 6.6Jul 31Google mcp-toolbox: denial of serviceCVE-2026-14539no fix yetMedium 4.3Jul 30Google Chrome: spoofingCVE-2026-18013fixed in 151.0.7922.72Medium 6.5Jul 30Google Chrome: remote attacker could bypass navigation restrictionsCVE-2026-18014fixed in 151.0.7922.72