CVE-2024-6866
Publication date 20 March 2025
Last updated 3 July 2025
Ubuntu priority
corydolphin/flask-cors version 4.01 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.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| python-flask-cors | 25.04 plucky |
Fixed 5.0.0-1ubuntu0.1
|
| 24.10 oracular |
Fixed 4.0.1-1ubuntu0.1
|
|
| 24.04 LTS noble |
Fixed 4.0.0-1ubuntu0.1~esm1
|
|
| 22.04 LTS jammy |
Fixed 3.0.9-2ubuntu0.1
|
|
| 20.04 LTS focal |
Fixed 3.0.8-2ubuntu0.1+esm1
|
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Get Ubuntu ProSeverity score breakdown
| Parameter | Value |
|---|---|
| Base score |
5.3 · Medium
|
| Attack vector | Network |
| Attack complexity | High |
| Privileges required | None |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | None |
| Availability impact | None |
| Vector | CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N |
References
Related Ubuntu Security Notices (USN)
- USN-7612-1
- Flask-CORS vulnerabilities
- 2 July 2025