CVE-2026-3446

A flaw was found in the Python base64 module. When decoding base64 data using functions like base64.b64decode(), the decoding process prematurely stops upon encountering the first padding character. This can result in incomplete data being processed, where any information following the initial padding is unexpectedly ignored. Consequently, applications might interpret or handle base64-encoded data inconsistently compared to other implementations, potentially leading to data integrity issues.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.