CVE-2023-41889

Name of the Vulnerable Software and Affected Versions SHIRASAGI versions prior to 1.18.0

Description The issue is related to a Post-Unicode normalization problem. This occurs when security checks are performed before Unicode normalization, allowing Unicode character equivalents to resurface after normalization.

Recommendations For versions prior to 1.18.0, update to version 1.18.0 to resolve the issue. As a temporary workaround, consider initially performing Unicode normalization, then stripping all whitespaces, and finally checking for a blank string to mitigate the risk of exploitation.