CVE-2024-6839
Improper Regex Path Matching in corydolphin/flask-cors
MEDIUM 4.3
At a glance
- Source
- NVD
- EPSS
- EPSS 0.74 % · percentile 54 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- @huntr_ai
- NVD status
- Modified
Description
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.
Weaknesses (CWE)
- CWE-41 — Improper Resolution of Path Equivalence
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.0 | MEDIUM 4.3 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N | @huntr_ai |
| CVSS 3.1 | MEDIUM 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N | NVD · nvd@nist.gov (Primary) |
| CVSS 3.0 | MEDIUM 4.3 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N | NVD · security@huntr.dev (Secondary) |
Advisories
- GHSA-7rxf-gvfg-47g4 — Flask-CORS improper regex path matching vulnerability
- PYSEC-2026-1384 — Flask-CORS improper regex path matching vulnerability
European references
- ENISA EUVD · EUVD-2025-6973
- GCVE · GCVE-0-2024-6839
CERT-FR advisories
- CERTFR-2026-AVI-0606 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0896 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:flask-cors_project:flask-cors:4.0.1:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| corydolphin · corydolphin/flask-cors | affected unspecified ≤ latest |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |