CVE-2024-6844

See a problem?
Please try reporting it to the source first.
Source
https://nvd.nist.gov/vuln/detail/CVE-2024-6844
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-6844.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2024-6844
Aliases
Downstream
Related
Published
2025-03-20T10:15:34Z
Modified
2025-08-02T02:13:28.759604Z
Summary
[none]
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.

References

Affected packages

Debian:11 / python-flask-cors

Package

Name
python-flask-cors
Purl
pkg:deb/debian/python-flask-cors?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.0.9-2+deb11u1

Affected versions

3.*

3.0.9-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / python-flask-cors

Package

Name
python-flask-cors
Purl
pkg:deb/debian/python-flask-cors?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.0.10-2

4.*

4.0.0-1
4.0.1-1

5.*

5.0.0-1
5.0.1-1

6.*

6.0.0-1
6.0.1-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / python-flask-cors

Package

Name
python-flask-cors
Purl
pkg:deb/debian/python-flask-cors?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.0.0-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Git / github.com/corydolphin/flask-cors

Affected ranges

Type
GIT
Repo
https://github.com/corydolphin/flask-cors
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
1df178ccc019c5aa7282246288c04f867d716790

Affected versions

1.*

1.10.0
1.10.1
1.10.2
1.10.3
1.8.1
1.9.0

2.*

2.0.0
2.0.0rc1
2.0.1
2.1.0
2.1.1
2.1.2
2.1.3

3.*

3.0.0
3.0.1
3.0.10
3.0.2
3.0.3
3.0.4
3.0.5
3.0.6
3.0.7
3.0.8
3.0.9
3.1.01

4.*

4.0.0
4.0.1

v1.*

v1.1
v1.1.1
v1.1.2
v1.1.3
v1.2.0
v1.2.1
v1.3.0
v1.3.1
v1.4.0
v1.6.0
v1.6.1
v1.7.0
v1.7.2
v1.7.3
v1.7.4
v1.8.0