CVE-2024-6844

NONE EPSS 19.8%
Published Mar 20, 20251y ago · Modified Jun 17, 20262w ago
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Published Mar 20, 2025 1y ago
Last Modified Jun 17, 2026 2w ago

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.

Threat Intelligence

EPSS Exploit Probability
19.8% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 1

CWE-346

Affected Products 1

VendorProductVersionRange
flask-cors_projectflask-cors4.0.1any

References 2

  • huntr.com https://huntr.com/bounties/731a6cd4-d05f-4fe6-8f5b-fe088d7b34e0
    ExploitThird Party Advisory
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/05/msg00049.html

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.