GHSA-w466-2wfc-8g58: Open webui Open WebUI Has Vulnerable Dependency Vulnerability

HIGH
Share
CVSS 7.5
CWE-400
Published
Advisory Summary

GHSA-w466-2wfc-8g58 is a HIGH (CVSS 7.5) open webui has vulnerable dependency vulnerability (CWE-400: Uncontrolled Resource Consumption) affecting Open webui libraries in the PyPI ecosystem. The issue involves open webui has vulnerable dependency on starlette via fastapi. Remediation is available in the latest vendor maintenance releases.

GHSA-w466-2wfc-8g58 at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-w466-2wfc-8g58
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-400: Uncontrolled Resource Consumption
Affected Product Open webui
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 7.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity None (I:N)
Availability High (A:H)

How to Fix GHSA-w466-2wfc-8g58

To remediate this vulnerability, upgrade all affected Open webui dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

open-webui fixed: Latest secure release 
pip install open-webui>=Latest secure release
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show open-webui

How to Check if You Are Affected

To determine whether your Python environment is affected by GHSA-w466-2wfc-8g58, inspect your installed packages using pip:

pip show open-webui

Analyze the terminal output to locate any version of Open webui in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The pip show open-webui command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-400: Uncontrolled Resource Consumption, where the product does not properly control the allocation and maintenance of a limited resource. In Open webui, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

In version 0.3.32 of open-webui, the application uses a vulnerable version of the starlette package through its dependency on fastapi. The starlette package versions <=0.49 are susceptible to uncontrolled resource consumption, which can be exploited to cause a denial of service through memory exhaustion. This issue is addressed in fastapi version 0.115.3.

GHSA-w466-2wfc-8g58 Affected Open webui Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
open-webui
pypi/open-webui
PyPI
≤ 0.3.32

References

GitHub Advisory / Wiki ADVISORY
https://github.com/encode/starlette/security/advisories/GHSA-f96h-pmfr-66vw
NVD — GHSA-w466-2wfc-8g58 NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-47874
Open webui Source Repository REPOSITORY
https://github.com/open-webui/open-webui
huntr.com/bounties/56175583-7... WEB
https://huntr.com/bounties/56175583-70e3-4d53-94de-3f3a8e2423ec

Frequently Asked Questions

What is GHSA-w466-2wfc-8g58?
GHSA-w466-2wfc-8g58 is a security vulnerability in Open webui involving Open WebUI has vulnerable dependency on starlette via fastapi under CWE-400: Uncontrolled Resource Consumption.
Which Open webui versions are affected?
Affected versions include releases prior to current release patches across affected packages: open-webui.
What version fixes GHSA-w466-2wfc-8g58?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is open-webui affected?
Yes, open-webui is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of GHSA-w466-2wfc-8g58?
GHSA-w466-2wfc-8g58 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with GHSA-w466-2wfc-8g58?
GHSA-w466-2wfc-8g58 is classified under CWE-400: Uncontrolled Resource Consumption (The product does not properly control the allocation and maintenance of a limited resource.).
How can I check PyPI dependencies for GHSA-w466-2wfc-8g58?
Run the dependency tree command: 'pip show open-webui'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-w466-2wfc-8g58",
  "modified" : "2025-04-15T19:35:51Z",
  "published" : "2025-03-20T12:32:44Z",
  "aliases" : [ ],
  "summary" : "Open WebUI has vulnerable dependency on starlette via fastapi",
  "details" : "In version 0.3.32 of open-webui, the application uses a vulnerable version of the starlette package through its dependency on fastapi. The starlette package versions <=0.49 are susceptible to uncontrolled resource consumption, which can be exploited to cause a denial of service through memory exhaustion. This issue is addressed in fastapi version 0.115.3.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "open-webui"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "0.3.32"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/encode/starlette/security/advisories/GHSA-f96h-pmfr-66vw"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2024-47874"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/open-webui/open-webui"
  }, {
    "type" : "WEB",
    "url" : "https://huntr.com/bounties/56175583-70e3-4d53-94de-3f3a8e2423ec"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-400" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-03-21T18:51:44Z",
    "nvd_published_at" : "2025-03-20T10:15:30Z"
  }
}