Vulnerability in Corydolphin Corydolphin/flask-Cors
CVE-2024-6839
corydolphin/flask-cors version 4.0.1 contains an improper regex path matching vulnerability. The plugin prioritizes longer regex patterns over more specific ones when matching paths, which can lead to less restrictive CORS policies being applied to sensitive endpoints. This mismatch in regex pattern priority allows unauthorized cross-origin access to sensitive data or functionality, potentially exposing confidential information and increasing the risk of unauthorized actions by malicious actors.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.007 (53.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 53.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: +0.000
Affected products
- Corydolphin Corydolphin/flask-Cors — versions unspecified
- Flask-Cors Project — versions 4.0.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- huntr.com/bounties/403eb1fc-86f4-4820-8eba-0f3dfae9f2b4 (Exploit, Third Party Advisory)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2024-6839?
- CVE-2024-6839 is a medium-severity vulnerability in Corydolphin Corydolphin/flask-Cors, classified under CWE-41. CVSS score: 5.3/10. Published 2025-03-20.
- How severe is CVE-2024-6839?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2024-6839 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.