CVE-2024-6866
unknown
CVSS v3
—
CVSS v2
—
VIR risk
—
Description
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.
Predictions
Exploit likelihood
30%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2024-6866
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bookworm | fixed | 3.0.10-2+deb12u1 |
| debian | bullseye | fixed | 3.0.9-2+deb11u1 |
| debian | forky | fixed | 6.0.0-1 |
| debian | sid | fixed | 6.0.0-1 |
| debian | trixie | fixed | 6.0.0-1 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| PyPI | flask-cors | <6.0.0 | 6.0.0 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2024-6866
- https://github.com/corydolphin/flask-cors/commit/eb39516a3c96b90d0ae5f51293972395ec3ef358
- https://github.com/corydolphin/flask-cors
- https://github.com/corydolphin/flask-cors/blob/4.0.1/flask_cors/extension.py#L195
- https://huntr.com/bounties/808c11af-faee-43a8-824b-b5ab4f62b9e6
- https://lists.debian.org/debian-lts-announce/2025/05/msg00049.html
- https://security-tracker.debian.org/tracker/CVE-2024-6866
Verify integrity in audit chain (admin only). AS-IS.