news.mlab.sh
Vulnerabilities
Vulnerability

CVE-2026-17084

Reference data from vuln.mlab.sh, coverage from our own index.

CVSS
6.0 Medium
Vector
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
Risk score
48.0
Published
2026-08-18
Status
Published

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.

Weaknesses

CWE-436

Coverage 1

Advisories and references