CVE-2024-6839

Improper Regex Path Matching in corydolphin/flask-cors

At a glance

Severity
MEDIUM 4.3
EPSS
EPSS 0.74 % · percentile 54 (2026-10-27)
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.

Scores

VersionScoreVectorScored by
CVSS 3.0MEDIUM 4.3CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N@huntr_ai
CVSS 3.1MEDIUM 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NNVD · nvd@nist.gov (Primary)
CVSS 3.0MEDIUM 4.3CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:NNVD · security@huntr.dev (Secondary)

Weaknesses (CWE)

Advisories

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
corydolphin · corydolphin/flask-corsaffected unspecified ≤ latest

References

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD