CVE-2026-19202

Katalog CVE

CVSS 9.1 · Critical EPSS 0,25%

Kerentanan Use of Cache Containing Sensitive Information. Skor CVSS 4.0 9.1 (Critical) menurut google.com.

Deskripsi (NVD)

A caching flaw in the toolbox-core package of the mcp-toolbox-sdk-python SDK causes the same Google ID token to be cached and reused across different audiences. If an application uses the SDK to authenticate to two or more different audiences within the same process, the module-level token cache fails to key its cached tokens by the requested audience. Consequently, a valid, unexpired token minted for a sensitive service (Service A) can be retrieved from the cache and sent to a secondary service (Service B). An attacker who operates, compromises, or monitors traffic to Service B can capture this token and replay it to impersonate the victim application against Service A.

Rincian

Terbit di NVD

22 September 2026

Terakhir diubah

23 September 2026

Status NVD

Awaiting Analysis

CVSS 4.0

9.1 (Critical), sumber google.com
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/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:X · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-524: Use of Cache Containing Sensitive Information

EPSS (30 hari)

0,25% peluang dieksploitasi; lebih tinggi dari 15,1% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://github.com/googleapis/mcp-toolbox-sdk-python/pull/675