CVE-2026-24486

EUVD-2026-4754
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.
Path Traversal
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.6 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Affected Products (NVD)
VendorProductVersion
fastapiexpertpython-multipart
𝑥
< 0.0.22
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
python-multipart
bookworm
vulnerable
bullseye
vulnerable
forky
0.0.22-1
fixed
sid
0.0.22-1
fixed
trixie
0.0.20-1.1~deb13u1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
python-multipart
jammy
Fixed 0.0.5-2ubuntu0.1~esm1
released
noble
Fixed 0.0.9-1ubuntu0.1~esm1
released
questing
needed