mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-08-04 08:59:19 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 11

bpo-39055: Reject a trailing \n in base64.b64decode() with validate=True. (GH-17616)

Browse source
This commit is contained in:
Serhiy Storchaka 2020-01-05 14:15:50 +02:00 • committed by GitHub
parent 41ec17e45d
commit b19c0d77e6
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
3 changed files with 4 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

2
Lib/base64.py
View file

@ -82,7 +82,7 @@ def b64decode(s, altchars=None, validate=False):
altchars = _bytes_from_decode_data(altchars)
assert len(altchars) == 2, repr(altchars)
s = s.translate(bytes.maketrans(altchars, b'+/'))
if validate and not re.match(b'^[A-Za-z0-9+/]*={0,2}$', s):
if validate and not re.fullmatch(b'[A-Za-z0-9+/]*={0,2}', s):
raise binascii.Error('Non-base64 digit found')
return binascii.a2b_base64(s)