https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-02T16:44:00.812865+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/cve-2026-17084 CVE-2026-17084 — stringprep.map_table_b2() deviates from RFC 3454 Table B.2 2026-10-02T16:44:00.814459+00:00

Affected: Python Software Foundation CPython

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.