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Fencer Intel
high 8.6

CVE-2026-24486 json

Python-Multipart has Arbitrary File Write via Non-Default Configuration

published 9mo ago modified last mo. also EUVD-2026-4754 , GHSA-wp53-j4wj-2cfg , PYSEC-2026-1852

cvss
8.6
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
2.2%
EPSS 2.2% chance of exploitation in 30 days, percentile 82%
public exploits
1
Exploit-DB

Summary

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.

Patch / fix

  • pypi python-multipart 0.0.22
  • Red Hat Red Hat AI Inference Server 3.2 1772160593, 1772160625
  • Red Hat Red Hat Ansible Automation Platform 2.6 1772204398, 1772429277
  • Red Hat Red Hat OpenShift AI 2.25 1772093278, 1776259063, 1776338381, 1783998774, 1783998857
  • Red Hat Red Hat OpenShift AI 3.3 1770956034, 1778264363
  • Red Hat Red Hat Satellite 6.17 1784834402
  • Red Hat Red Hat Satellite 6.18 1769520238, 1784554123
  • python-multipart Debian 13 0.0.20-1.1~deb13u1
  • python-multipart Debian 14 0.0.20-1.1

debian advisories DEBIAN-CVE-2026-24486

  • python-multipart Ubuntu Pro 22.04 LTS 0.0.5-2ubuntu0.1~esm1
  • python-multipart Ubuntu Pro 24.04 LTS 0.0.9-1ubuntu0.1~esm1

ubuntu advisories UBUNTU-CVE-2026-24486

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • python-python-multipart SLES for SAP applications 16.0, SLES 16.0 0.0.20-160000.3.1
  • python-python-multipart openSUSE Leap 15.6 0.0.9-150600.3.6.1

suse advisories SUSE-SU-2026:20188-1SUSE-SU-2026:0307-1

  • python-python-multipart openSUSE Leap 16.0 0.0.20-160000.3.1

opensuse advisories openSUSE-SU-2026:20125-1

Is CVE-2026-24486 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-24486 updated cvss 8.6

python-multipart: Python-Multipart: Arbitrary file write via path traversal vulnerability

  • Red Hat Lightspeed Core lightspeed-core/lightspeed-stack-rhel9 Red Hat OpenShift Lightspeed openshift-lightspeed/lightspeed-service-api-rhel9 Red Hat AI Inference Server rhaiis/vllm-tpu-rhel9, rhaiis/vllm-spyre-rhel9, rhaiis-preview/vllm-cuda-rhel9
    affected: workaround, no fix available
  • Red Hat Ansible Automation Platform 2 ansible-automation-platform-25/lightspeed-chatbot-rhel8 Red Hat Enterprise Linux AI (RHEL AI) 3 rhelai3/bootc-cuda-rhel9, rhelai3/bootc-aws-cuda-rhel9, rhelai3/bootc-gcp-cuda-rhel9, rhelai3/disk-image-cuda-rhel9, rhelai3/bootc-azure-cuda-rhel9
    affected: workaround, no fix planned “Will not fix”
  • Red Hat OpenShift AI (RHOAI) rhoai/odh-llama-stack-core-rhel9, rhoai/odh-kserve-storage-initializer-rhel9, rhoai/odh-trustyai-ragas-lls-provider-dsp-rhel9
    affected: workaround, no fix available, no fix planned “Will not fix”
  • Red Hat Satellite 6 satellite/iop-vmaas-rhel9, satellite/iop-host-inventory-rhel9
    affected: workaround, no fix available
  • Red Hat AI Inference Server 3.2 rhaiis 1772160593, rhaiis 1772160625
    fixed: vendor fix RHSA-2026:3461
  • Red Hat Ansible Automation Platform 2.6 ansible-automation-platform-26 1772204398, ansible-automation-platform-26 1772429277
    fixed: vendor fix RHSA-2026:3960
  • Red Hat OpenShift AI 2.25 rhoai 1772093278, rhoai 1776259063, rhoai 1776338381, rhoai/odh-vllm-cuda-rhel9 1783998774, rhoai/odh-vllm-rocm-rhel9 1783998857
    fixed: vendor fix RHSA-2026:10184
  • Red Hat OpenShift AI 3.3 rhoai 1770956034, rhoai 1778264363
    fixed: vendor fix RHSA-2026:19712
show 6 more
  • Red Hat Satellite 6.17 satellite/iop-advisor-engine-rhel9 1784834402
    fixed: vendor fix RHSA-2026:44696
  • Red Hat Satellite 6.18 satellite 1769520238, satellite/iop-vulnerability-engine-rhel9 1784554123
    fixed: vendor fix RHSA-2026:1504
  • Red Hat OpenShift Lightspeed openshift-lightspeed/lightspeed-ocp-rag-rhel9
    not affected: component not present
  • Red Hat Ansible Automation Platform 2 ansible-automation-platform/ee-minimal-rhel8, ansible-automation-platform/ee-minimal-rhel9, ansible-automation-platform-24/de-minimal-rhel8, ansible-automation-platform-24/de-minimal-rhel9, ansible-automation-platform-24/ee-minimal-rhel8, ansible-automation-platform-24/ee-minimal-rhel9, +24 more Red Hat Ansible Automation Platform 2.6 ansible-automation-platform 1772556678, ansible-automation-platform 1772556679, ansible-automation-platform-26 1772381996, ansible-automation-platform-26 1772382003, ansible-automation-platform-26 1772382254, ansible-automation-platform-26 1772382278, +20 more
    not affected: vulnerable code not present
  • Red Hat OpenShift AI (RHOAI) rhoai/odh-caikit-nlp-rhel9, rhoai/odh-kserve-agent-rhel9, rhoai/odh-kserve-router-rhel9, rhoai/odh-kserve-controller-rhel9, rhoai/odh-caikit-tgis-serving-rhel9
    not affected: vulnerable code not in execute path
  • Red Hat OpenShift AI 2.25 rhoai 1772093237, rhoai 1772093250, rhoai 1772093252, rhoai 1772093260, rhoai 1772093266, rhoai 1772093272, +212 more Red Hat OpenShift AI 3.3 rhoai 1769162595, rhoai 1769436305, rhoai 1769519975, rhoai 1770277795, rhoai 1770735854, rhoai 1770754585, +152 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Timeline

  1. Published
  2. First public exploit (EDB-52543)

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
9mo ago

Exploit prediction

2.21% chance of exploitation in the next 30 days, higher than 82% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-52543 Python-Multipart 0.0.22 - Path Traversal webapps, 2026-04-30
  • github.com https://github.com/Kludex/python-multipart/security/advisories/GHSA-wp53-j4wj-2cfg referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L
CISA ADP 3.1 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L
GitHub 3.1 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
OSV 3.1 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L

Affected packages

ecosystem package affected fixed in
pypi python-multipart
<0.0.22
0.0.22

Affected products

  • Kludex python-multipart
  • Red Hat Red Hat AI Inference Server 3.2
  • Red Hat Red Hat Ansible Automation Platform 2.6
  • Red Hat Red Hat OpenShift AI 2.25
  • Red Hat Red Hat OpenShift AI 3.3
  • Red Hat Red Hat Satellite 6.17
  • Red Hat Red Hat Satellite 6.18
  • Red Hat Lightspeed Core
  • Red Hat OpenShift Lightspeed
  • Red Hat Red Hat AI Inference Server
  • Red Hat Red Hat Ansible Automation Platform 2
  • Red Hat Red Hat Enterprise Linux AI (RHEL AI) 3
  • Red Hat Red Hat OpenShift AI (RHOAI)
  • Red Hat Red Hat Satellite 6

Classification

Weakness
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.