GHSA-43qf-4rqw-9q2g

Source

https://github.com/advisories/GHSA-43qf-4rqw-9q2g

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/03/GHSA-43qf-4rqw-9q2g/GHSA-43qf-4rqw-9q2g.json

JSON Data

https://api.test.osv.dev/v1/vulns/GHSA-43qf-4rqw-9q2g

Aliases

CVE-2024-6866

Published

2025-03-20T12:32:45Z

Modified

2025-03-21T22:36:48.493292Z

Severity

5.3 (Medium) CVSS_V3 - CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N CVSS Calculator

Summary

Flask-CORS vulnerable to Improper Handling of Case Sensitivity

Details

corydolphin/flask-cors version 4.0.1 contains a vulnerability where the request path matching is case-insensitive due to the use of the try_match function, which is originally intended for matching hosts. This results in a mismatch because paths in URLs are case-sensitive, but the regex matching treats them as case-insensitive. This misconfiguration can lead to significant security vulnerabilities, allowing unauthorized origins to access paths meant to be restricted, resulting in data exposure and potential data leaks.

Database specific

{
    "nvd_published_at": "2025-03-20T10:15:34Z",
    "cwe_ids": [
        "CWE-178"
    ],
    "severity": "MODERATE",
    "github_reviewed": true,
    "github_reviewed_at": "2025-03-21T22:16:04Z"
}

References

Affected packages

PyPI / flask-cors

Package

Name: flask-cors; View open source insights on deps.dev
Purl: pkg:pypi/flask-cors

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Last affected

4.0.1

Affected versions

0.*

0.0.0.dev3

0.0.0.dev4

1.*

1.0

1.1

1.1.1

1.1.2

1.1.3

1.2.0

1.2.1

1.3.0

1.3.1

1.4.0

1.5.0

1.6.0

1.6.1

1.7.0

1.7.1

1.7.2

1.7.3

1.7.4

1.8.0

1.8.1

1.9.0

1.10.0

1.10.1

1.10.2

1.10.3

2.*

2.0.0rc1

2.0.0

2.0.1

2.1.0

2.1.1

2.1.2

2.1.3

3.*

3.0.0

3.0.1

3.0.2

3.0.3

3.0.4

3.0.6

3.0.7

3.0.8

3.0.9

3.0.10

4.*

4.0.0a0

4.0.0

4.0.1