This page tracks the Alpine Linux fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-17084 →

ALPINE-CVE-2026-17084

The "stringprep" module didn't process characters from RFC 3454 tables B.2 or B.3 correctly: the latest Unicode codepoint attributes were used inste...

Original description

The description as published by the source.

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.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Alpine:v3.21 python3

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.12.15-r0"}]}]

Alpine:v3.22 python3

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.12.15-r0"}]}]

Alpine:v3.23 python3

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.12.15-r0"}]}]

Alpine:v3.24 python3

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.14.8-r0"}]}]

References

advisory security.alpinelinux.org