{"id":"CVE-2024-6866","summary":"Case-Insensitive Path Matching in corydolphin/flask-cors","details":"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.","aliases":["GHSA-43qf-4rqw-9q2g","PYSEC-2026-1383"],"modified":"2026-08-12T03:51:10.942706322Z","published":"2025-03-20T10:10:59.521Z","related":["CGA-whf4-f4w4-r4wg","openSUSE-SU-2026:10485-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/6xxx/CVE-2024-6866.json","cna_assigner":"@huntr_ai","cwe_ids":["CWE-178"]},"references":[{"type":"WEB","url":"https://huntr.com/bounties/808c11af-faee-43a8-824b-b5ab4f62b9e6"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/05/msg00049.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/6xxx/CVE-2024-6866.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-6866"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/corydolphin/flask-cors","events":[{"introduced":"1df178ccc019c5aa7282246288c04f867d716790"},{"last_affected":"1df178ccc019c5aa7282246288c04f867d716790"}],"database_specific":{"cpe":"cpe:2.3:a:flask-cors_project:flask-cors:4.0.1:*:*:*:*:*:*:*","extracted_events":[{"introduced":"4.0.1"},{"last_affected":"4.0.1"}],"source":"CPE_STRING"}}],"versions":["4.0.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-6866.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N"}]}