Vulnerability Details 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 4.8%
CVSS Severity
CVSS v3 Score 8.6
References
Products affected by CVE-2026-24486
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cpe:2.3:a:fastapiexpert:python-multipart:0.0.1
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cpe:2.3:a:fastapiexpert:python-multipart:0.0.10
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cpe:2.3:a:fastapiexpert:python-multipart:0.0.11
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cpe:2.3:a:fastapiexpert:python-multipart:0.0.12
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cpe:2.3:a:fastapiexpert:python-multipart:0.0.13
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cpe:2.3:a:fastapiexpert:python-multipart:0.0.14
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cpe:2.3:a:fastapiexpert:python-multipart:0.0.15
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cpe:2.3:a:fastapiexpert:python-multipart:0.0.16
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cpe:2.3:a:fastapiexpert:python-multipart:0.0.17
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cpe:2.3:a:fastapiexpert:python-multipart:0.0.2
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cpe:2.3:a:fastapiexpert:python-multipart:0.0.3
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cpe:2.3:a:fastapiexpert:python-multipart:0.0.4
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cpe:2.3:a:fastapiexpert:python-multipart:0.0.5
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cpe:2.3:a:fastapiexpert:python-multipart:0.0.6
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cpe:2.3:a:fastapiexpert:python-multipart:0.0.7
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cpe:2.3:a:fastapiexpert:python-multipart:0.0.8
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cpe:2.3:a:fastapiexpert:python-multipart:0.0.9