stringprep.map_table_b2() deviates from RFC 3454 Table B.2
13Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 6epss 0.6%
probabilidade de exploração
0.6%top 53% das CVEs
exploração observada
nãonenhuma fonte reporta
The "stringprep" module didn't process characters from RFC 3454 tables
B.2 or B.3 correctly: the latest Unicode codepoint attributes were used
instead of the specified Unicode 3.2.0. This behavior would cause
mismatches when processing domain names using IDNA 2003 (the "idna"
codec) and the in_table_b2() function of the "stringprep" module. This
only affects domain names containing characters that were not previously
registered or had their Unicode attributes such as case-folding
behavior updated since Unicode 3.2.0.
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Produtos afetados
Python Software Foundation · CPythonReferências
https://github.com/python/cpython/commit/1e54caa096678a38afcabecabb1ff72400dd6baehttps://github.com/python/cpython/commit/5181304bcec9cfc3c15311741c9154cdff2e3fd7https://github.com/python/cpython/commit/7e109d084d55e7eb25837a5f3b47ef9beee547bchttps://github.com/python/cpython/commit/c016c2535b74227fddf2cf7334dbfead6c930214https://github.com/python/cpython/commit/c28b121a4f0b975937c8b5a1b4934bb361d84296https://github.com/python/cpython/commit/c42790b34f634051750e5da340d17c7da19e4784https://github.com/python/cpython/issues/155292https://github.com/python/cpython/pull/155293https://mail.python.org/archives/list/security-announce@python.org/thread/EUHHTC6EV7HCLSUHP25C5VHSV4V2MUZN/http://www.openwall.com/lists/oss-security/2026/08/18/2