CVE Watch24 sept 2026

CVE-2026-96749

An integer overflow in the BSON document encoding component of the MongoDB Python Driver's bundled native extension may occur when a single

CVSS

8.4

Alto

EPSS

0.1%

KEV

—

Exploit Today

0-100

Publicado: 24 sept 2026 · Última mod.: 24 sept 2026 · CWE-190

EPSS · 30d

Sin historial EPSS suficiente todavía.

Descripción técnica

An integer overflow in the BSON document encoding component of the MongoDB Python Driver's bundled native extension may occur when a single document is built from an unusually large amount of caller-supplied data. Size arithmetic is performed in a signed 32-bit type, and the guard meant to catch the overflow is written in a form whose behavior is not defined by the C language standard. A party with no privileges who can place a very large value into data that an application encodes may, depending on how the native extension was built, cause a write outside the bounds of an allocated buffer inside the application's own process.

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