Release date:
2026-05-13 14:26:59 UTC
Description:
* SECURITY UPDATE: binascii.a2b_base64 / base64.b64decode stop decoding
after the first padded quad, silently dropping any excess data. The
behaviour can lead to data being accepted that other implementations
process differently.
- debian/patches/CVE-2026-3446.patch: backport of upstream commits
4561f6418a (main), e31c55121620 (3.14), 1f9958f909c1 (3.13). Treats
the pad character as non-alphabet data per RFC 4648 section 3.3:
the loop in binascii_a2b_base64_impl no longer breaks out on a pad
sequence; a `pads` counter is added so post-loop validation still
raises "Incorrect padding" for inputs that do not satisfy
`quad_pos + pads == 4`. The unused `binascii_find_valid` helper
is removed.
- CVE-2026-3446
Updated packages:
-
alt-python36_3.6.15-32_amd64.deb
sha:dc3fe74a6185d204e65c611d787e4101ffb0b7ff
-
alt-python36-debug_3.6.15-32_amd64.deb
sha:a9ae77e423baae6456ce5d150333d02fb2c98ae1
-
alt-python36-devel_3.6.15-32_amd64.deb
sha:01d68220454fa0f492929add01f5f88b8fc61971
-
alt-python36-libs_3.6.15-32_amd64.deb
sha:12165a0c773a1863836e67d216c5020085ba9087
-
alt-python36-test_3.6.15-32_amd64.deb
sha:a70b46001ec454f0e63efa873fda7dc4ac28ffad
-
alt-python36-tkinter_3.6.15-32_amd64.deb
sha:7b630d52911537583def1d45508e0419c3e75768
-
alt-python36-tools_3.6.15-32_amd64.deb
sha:5c070c0c8e315dc35e7df75265abc5350c200ff3
Notes:
This page is generated automatically and has not been checked for errors. For clarification or
corrections please contact the
CloudLinux Packaging Team.
