CVE-2026-24486
Python-Multipart is a streaming multipart parser for Python. Prior to version 0.0.22, a Path Traversal vulnerability exists when using non-default configuration options `UPLOAD_DIR` and `UPLOAD_KEEP_FILENAME=True`. An attacker can write uploaded files to arbitrary locations on the filesystem by crafting a malicious filename. Users should upgrade to version 0.0.22 to receive a patch or, as a workaround, avoid using `UPLOAD_KEEP_FILENAME=True` in project configurations.
Published:Jan 27, 2026
Last Modified:Apr 18, 2026
EPS:Jan 27, 2026
EPSS Score:0.0003
CVSS Score:8.6
Affected Products
Vendor
Product
Action
Vendor
Fastapiexpert
Product
Python-multipart
Fastapiexpert
Python-multipart
Vendor
Kludex
Product
Python-multipart
Kludex
Python-multipart
Exploits
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
Related CVEs
References
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
