GHSA-8vgw-p6qm-5gr7

Source

https://github.com/advisories/GHSA-8vgw-p6qm-5gr7

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/03/GHSA-8vgw-p6qm-5gr7/GHSA-8vgw-p6qm-5gr7.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-8vgw-p6qm-5gr7

Aliases

CVE-2024-6844

Published

2025-03-20T12:32:45Z

Modified

2025-03-21T22:25:52.786106Z

Severity

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

Summary

Flask-CORS allows for inconsistent CORS matching

Details

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.

Database specific

{
    "nvd_published_at": "2025-03-20T10:15:34Z",
    "cwe_ids": [],
    "severity": "MODERATE",
    "github_reviewed": true,
    "github_reviewed_at": "2025-03-21T22:10:24Z"
}

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