In Pallets Werkzeug before 0.15.5, SharedDataMiddleware mishandles drive names (such as C:) in Windows pathnames.
Priority HIGH 66CWE-22Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-22 and the CVSS impact.
Summary
In Pallets Werkzeug before 0.15.5, SharedDataMiddleware mishandles drive names (such as C:) in Windows pathnames.
Why it matters now
EPSS 0.55803 99th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed werkzeug (PyPI): 0.15.5
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | werkzeug (PyPI) | before 0.15.5 | 0.15.5 | Patch available | GHSA-j544-7q9p-6xp8 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- werkzeug (PyPI) Vendor— Affected before 0.15.5 Fixed in 0.15.5 Patch available GHSA-j544-7q9p-6xp8
Remediation
- Fix · GHSA-j544-7q9p-6xp8 werkzeug (PyPI) Fixed in 0.15.5 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2019-14322
- 2026-10-03 Alias added: GHSA-j544-7q9p-6xp8
References
Advisory 2
More pallets Werkzeug vulnerabilities
- TI-2022-11856 Improper parsing of HTTP requests in Pallets Werkzeug v2.1.0 and below allows attackers… CVSS 3.1CRITICAL 9.8
- TI-2023-10880 Werkzeug may allow high resource usage when parsing multipart form data with many fields CVSS 3.1HIGH 7.5
- TI-2024-22527 Werkzeug's improper usage of a pathname and improper CSRF protection results in the remote command execution CVSS 3.1HIGH 7.5
- TI-2024-33234 Werkzeug possible resource exhaustion when parsing file data in forms CVSS 4.0MEDIUM 6.9
- TI-2023-24778 Uncontrolled resource consumption in pallets werkzeug CVSS 3.1HIGH 8.0
- TI-2019-11011 Pallets Werkzeug before 0.15.3, when used with Docker, has insufficient debugger PIN… CVSS 3.1HIGH 7.5
Sources
- CVE-2019-14322 · CVE Program
- CVE-2019-14322 · NVD
- FIRST EPSS
- GHSA-j544-7q9p-6xp8 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences