CVE-2024-6844 — Inconsistent CORS Matching Due to Handling of '+' in URL Path in corydolphin/flask-cors

Description (CNA)

A vulnerability in corydolphin/flask-cors version 4.0.1 allows for inconsistent CORS matching due to the handling of the '+' character in URL paths. The request.path is passed through the unquote_plus function, which converts the '+' character to a space ' '. This behavior leads to incorrect path normalization, causing potential mismatches in CORS configuration. As a result, endpoints may not be matched correctly to their CORS settings, leading to unexpected CORS policy application. This can cause unauthorized cross-origin access or block valid requests, creating security vulnerabilities and usability issues.

Affected (CNA)

Vendor / product	Versions
corydolphin / corydolphin/flask-cors	affected unspecified through latest

CWE

CWE-346

References

https://huntr.com/bounties/731a6cd4-d05f-4fe6-8f5b-fe088d7b34e0

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

CVE

No English description supplied.

https://lists.debian.org/debian-lts-announce/2025/05/msg00049.html