Bug 2433132 (CVE-2026-24486)

Summary: CVE-2026-24486 python-multipart: Python-Multipart: Arbitrary file write via path traversal vulnerability
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: alinfoot, anpicker, anthomas, aprice, bbrownin, bparees, dfreiber, drow, dschmidt, dtrifiro, ebourniv, ehelms, erezende, ggainey, hasun, jburrell, jdobes, jfula, jkoehler, jlanda, jowilson, jsamir, juwatts, jwong, kaycoth, kshier, lgallett, lphiri, mhayden, mhulan, nmoumoul, nyancey, oezr, omaciel, ometelka, orabin, osousa, pcreech, ptisnovs, rbryant, rchan, sbunciak, sdoran, simaishi, smallamp, smcdonal, stcannon, syedriko, teagle, tmalecek, ttakamiy, vkumar, weaton, xdharmai, yguenane
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Python-Multipart, a tool for parsing multipart form data in Python applications. This vulnerability, known as path traversal, allows a remote attacker to write uploaded files to any location on the server's file system. This exploitation occurs when specific non-default configuration options, `UPLOAD_DIR` and `UPLOAD_KEEP_FILENAME=True`, are enabled, and a malicious filename is provided during a file upload. The primary consequence is unauthorized file creation or modification, which could lead to system compromise.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2433371, 2433372, 2433373, 2433374    
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Description OSIDB Bzimport 2026-01-27 01:01:23 UTC 
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.