CVE-2026-3446

N/A

Descripcion

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.

Detalles CVE

Puntuacion CVSS v3.1N/A

Publicado4/10/2026

Ultima modificacion4/10/2026

Fuentenvd

Avistamientos honeypot0

Referencias

https://github.com/python/cpython/commit/1f9958f909c1b41a4ffc0b613ef8ec8fa5e7c474(cna@python.org)

https://github.com/python/cpython/commit/4561f6418a691b3e89aef0901f53fe0dfb7f7c0e(cna@python.org)

https://github.com/python/cpython/commit/e31c55121620189a0d1a07b689762d8ca9c1b7fa(cna@python.org)

https://github.com/python/cpython/issues/145264(cna@python.org)

https://github.com/python/cpython/pull/145267(cna@python.org)

https://mail.python.org/archives/list/security-announce@python.org/thread/F5ZT5ICGJ6CKXVUJ34YBVY7WOZ5SHG53/(cna@python.org)

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