CVE-2026-106435
MEDIUM
NVD
CVSS Score
5.1
Severity
MEDIUM
Published
Oct 08, 2026
Vendor
unknown
Description
The MongoDB Python Driver's binary accelerator can read outside a buffer when an application decodes malformed BSON containing a truncated regular-expression element without a trailing NUL byte. An actor who can supply BSON to the documented decode or decode_all API can cause the application process to terminate when the C extension is loaded. The driver's normal database wire-protocol path does not reach this code.