CVE-2026-14537: 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 protecte
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.
Details
Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-14537
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-145370.21% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 11% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-14537 | coverage & exploitation status | NVD · CVE.org |
Recent advisories for Incorrect Authorization in
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- highCVE-2026-18394: Incorrect authorization in the http_request tool in Strands Agents Tools before 0.8.2 might al…nvd · 2026-07-31
- unknownCVE-2026-18394 - Incorrect authorization in Strands Agents Tools http_request toolaws · 2026-07-31
- criticalCVE-2026-48449: Adobe Campaign Classic (ACC) is affected by an Incorrect Authorization vulnerability that coul…nvd · 2026-07-30
- unknownCVE-2026-44944: An Incorrect Authorization vulnerability in open-iscsi allows unprivilidged local users to use…nvd · 2026-07-29
- highCVE-2026-48396: Bridge is affected by an Incorrect Authorization vulnerability that could result in arbitrary …nvd · 2026-07-28
- highCVE-2026-48390: Bridge is affected by an Incorrect Authorization vulnerability that could result in privilege …nvd · 2026-07-28
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