VULNERABILITY INTELLIGENCE
CVE-2026-3446
CVSS score6 MEDIUM
EPSS probability0.19%
CISA KEVNot currently listed
Published2026-04-10
Last modified2026-10-26
CVSS vectorCVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Description
When calling base64.b64decode() or related functions the decoding process would stop after encountering the first padded quad regardless of whether there was more information to be processed. This can lead to data being accepted which may be processed differently by other implementations. Use "validate=True" to enable stricter processing of base64 data.
Weakness classification
- CWE-345: Insufficient Verification of Data Authenticity