CVE-2026-3446
1 advisory.
python/python CVE-2026-3446: medium 6
Base64 decoding stops at first padded quad by default
Action: Upgrade python to 3.13.13 (3.13.x) or 3.14.4 (3.14.x) or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 3.13.13 | - |
| 3.14.0 | 3.14.4 | - |
Fixed versions
| 3.13.13 | 3.14.4 |
Sources
- python-runtime: PSF-2026-16
- https://mail.python.org/archives/list/security-announce@python.org/thread/F5ZT5ICGJ6CKXVUJ34YBVY7WOZ5SHG53/
- https://www.cve.org/CVERecord?id=CVE-2026-3446
CVE-2026-3446 · published · modified · JSON