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Public proof of conceptFix available

CVE-2026-24486

A public proof of concept exists; no exploitation attested.

  • Published2026-01-27
  • Fixed in0.0.22
  • WeaknessCWE-22

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC
  1. 2026-04-30Exploit-DB entryExploit-DB

Versions per branch

NVD · OSV
Fastapiexpert python-multipart
BranchAffectedFixed in
0.0< 0.0.220.0.22

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As GitHub_M, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • Kludex python-multipart
    Affected
    • = < 0.0.22no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-01-27

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • airflow-3Wolfiall versions · fixed in 3.1.6-r4
  • airflow-3MinimOSall versions · fixed in 3.1.7-r0and 2 other packages
  • airflow-3Chainguardall versions · fixed in 3.1.6-r4
  • airflow-core-3Chainguardall versions · fixed in 3.1.6-r1
  • litellmChainguardall versions · fixed in 1.81.3.0-r1
  • litellm-1.80MinimOSall versions · no fixed version listed
  • litellm-1.83MinimOSall versions · fixed in 1.83.10-r0and 3 other packages
  • mcp-timeMinimOSall versions · fixed in 2026.6.16-r0and 1 other package

22 more package ranges on OSV.dev

Vendor advisories

  • CVE-2026-24486 Red Hat Product Security26 products fixed · 16 known affected

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

    lightspeed-core/lightspeed-stack-rhel9 as a component of Lightspeed Core · openshift-lightspeed/lightspeed-service-api-rhel9 as a component of OpenShift Lightspeed · rhaiis-preview/vllm-cuda-rhel9 as a component of Red Hat AI Inference Server · +13 more

  • RHSA-2026:51357 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: satellite/iop-vulnerability-engine-rhel9 container image available as a Technology Preview

  • RHSA-2026:44696 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: satellite/iop-advisor-engine-rhel9 container image available as a Technology Preview

  • RHSA-2026:42644 Red Hat Product Security3 products fixed

    Red Hat Security Advisory: RHOAI 2.25.9 - Red Hat OpenShift AI

  • RHSA-2026:19712 Red Hat Product Security2 products fixed

    Red Hat Security Advisory: RHOAI 3.3.3 - Red Hat OpenShift AI

  • RHSA-2026:10184 Red Hat Product Security5 products fixed

    Red Hat Security Advisory: RHOAI 2.25.5 - Red Hat OpenShift AI

6 more advisories

Full record on NVD

Fix

  1. Update Fastapiexpert python-multipart to 0.0.22
  2. Vendor fix Red Hat Product Security RHSA-2026:51357 · 1 productFor Red Hat Lightspeed in Satellite installation see the Red Hat Satellite documentation.
  3. Vendor fix Red Hat Product Security RHSA-2026:44696 · 1 productThe container image provided by this update can be downloaded from the Red Hat container registry at registry.redhat.io using the "podman pull" command. For more information about the image, search the <image_name> in the Red Hat Ecosystem Catalog: https://catalog.redhat.com/software/containers/sea…
  4. Vendor fix Red Hat Product Security RHSA-2026:42644 · 3 productsFor Red Hat OpenShift AI 2.25.9 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this errata update: https://docs.redhat.com/en/documentation/red_hat_openshift_ai/
  5. Vendor fix Red Hat Product Security RHSA-2026:19712 · 2 productsFor Red Hat OpenShift AI 3.3.3 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this errata update: https://docs.redhat.com/en/documentation/red_hat_openshift_ai/
  6. Vendor fix Red Hat Product Security RHSA-2026:10184 · 5 productsFor Red Hat OpenShift AI 2.25.5 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this errata update: https://docs.redhat.com/en/documentation/red_hat_openshift_ai/
  7. Vendor fix Red Hat Product Security RHSA-2026:3960 · 8 productsBefore applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://docs.redhat.com/en/documentation/red_hat_ansible_automation_platform/2.6#Upgrade

Advisories and patches

Detection

read 2026-11-09 09:28 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
EDB-52543
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Published
2026-01-27
Last Modified
2026-08-07
NVD status
Modified
GitHub Advisory
GHSA-wp53-j4wj-2cfg

Frequently asked questions

What is 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.

Is CVE-2026-24486 actively exploited?

Active exploitation of CVE-2026-24486 has not been confirmed. Its EPSS score was 2.2% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-24486?

CVE-2026-24486 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

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