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PYSEC-2026-1383 Flask-CORS vulnerable to Improper Handling of Case Sensitivity

🗓️ 07 Jul 2026 14:34:54Reported by GoogleType 
osv
 osv🔗 osv.dev👁 5 Views

Flask-Cors 5.0.1 uses case-insensitive path matching via try_match, exposing restricted paths and risking data leaks.

Related
Refs
ReporterTitlePublishedViews
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IBM Security Bulletins		Security Bulletin: The IBM Maximo Application Suite AI-Service component uses multiple third-party dependencies that contain vulnerabilities associated with multiple CVEs.
2 Feb 202604:22
–ibm
IBM Security Bulletins		Security Bulletin: IBM Cloud Pak for Data System (CPDS 1.0) is affected by multiple vulnerabilities due to Flask-Cors
1 Apr 202609:55
–ibm
IBM Security Bulletins		Security Bulletin: IBM Maximo Application Suite uses flask_cors-5.0.1-py3-none-any.whl which is vulnerable to CVE-2024-6866, CVE-2024-6839, CVE-2024-6.
1 Aug 202510:38
–ibm
IBM Security Bulletins		Security Bulletin: IBM Maximo Application Suite - Visual Inspection component uses flask_cors-5.0.1-py3-none-any.whl which is vulnerable to this CVE-2024-6839, CVE-2024-6866 and CVE-2024-6844
1 Aug 202510:29
–ibm
IBM Security Bulletins		Security Bulletin: Log Injection Vulnerability in orydolphin/flask-cors (Debug Logging) affects watsonx.data
8 Apr 202608:45
–ibm
BDU FSTEC		The vulnerability of the try_match function in the Python PyPi software repository allows a attacker to compromise the confidentiality of the protected information.
27 Sep 202400:00
–bdu_fstec
Chainguard		CVE-2024-6866 vulnerabilities
22 May 202501:15
–cgr
Circl		CVE-2024-6866
23 May 202522:39
–circl
CNNVD		Flask-CORS 安全漏洞
20 Mar 202500:00
–cnnvd
CVE		CVE-2024-6866
20 Mar 202510:10
–cve
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07 Jul 2026 17:47Current
6.5Medium risk
Vulners AI Score6.5
CVSS 35.3
EPSS0.00642
Flask-CorsCase sensitivityPath matchingTry matchData leaksSecurity vulnerability
5