CVE-2024-6844

Description

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.

Reserved 2024-07-17 | Published 2025-03-20 | Updated 2025-03-20 | Assigner @huntr_ai

Problem types

CWE-840 Business Logic Errors

Product status

Any version
affected

References

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

cve.org (CVE-2024-6844)

nvd.nist.gov (CVE-2024-6844)

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