CVE-2024-12537: Open webui Remote Code Execution Vulnerability

HIGH

Advisory Identifier: GHSA-chf7-q7m5-fq92

CVSS 7.5

Published 2025-03-20

Advisory Summary

CVE-2024-12537 is a HIGH (CVSS 7.5) remote code execution vulnerability (CWE-400: Uncontrolled Resource Consumption) affecting Open webui libraries in the PyPI ecosystem. The issue involves open webui uncontrolled resource consumption vulnerability. Remediation is available in the latest vendor maintenance releases.

CVE-2024-12537 at a Glance

CVE Identifier CVE-2024-12537

GHSA Identifier GHSA-chf7-q7m5-fq92

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 2025-03-20

Last Updated 2025-03-21

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 CVE-2024-12537

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

open-webui fixed: Latest secure release

npm 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 CVE-2024-12537, 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/open-webui, the absence of authentication mechanisms allows any unauthenticated attacker to access the `api/v1/utils/code/format` endpoint. If a malicious actor sends a POST request with an excessively high volume of content, the server could become completely unresponsive. This could lead to severe performance issues, causing the server to become unresponsive or experience significant degradation, ultimately resulting in service interruptions for legitimate users.

CVE-2024-12537 Affected Open webui Versions

2 component(s)

Product / Package	Ecosystem	Affected Versions	Fixed Version
open-webui pypi/open-webui	PyPI	≤ 0.3.32
open-webui npm/open-webui	npm	≤ 0.3.32

References

NVD — CVE-2024-12537 NVD

https://nvd.nist.gov/vuln/detail/CVE-2024-12537

Open webui Source Repository REPOSITORY

https://github.com/open-webui/open-webui

Open webui Source Repository REPOSITORY

https://github.com/open-webui/open-webui/blob/e8babe62bc8e466be0367703fd062a981f5c2394/src/lib/apis/utils/index.ts#L25-L56

huntr.com/bounties/edabd06c-a... WEB

https://huntr.com/bounties/edabd06c-acc0-428c-a481-271f333755bc

Frequently Asked Questions

What is CVE-2024-12537?

CVE-2024-12537 is a security vulnerability in Open webui involving Open WebUI Uncontrolled Resource Consumption vulnerability 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 CVE-2024-12537?

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 CVE-2024-12537?

CVE-2024-12537 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 CVE-2024-12537?

CVE-2024-12537 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 CVE-2024-12537?

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-chf7-q7m5-fq92",
  "modified" : "2025-03-21T17:29:27Z",
  "published" : "2025-03-20T12:32:43Z",
  "aliases" : [ "CVE-2024-12537" ],
  "summary" : "Open WebUI Uncontrolled Resource Consumption vulnerability",
  "details" : "In version 0.3.32 of open-webui/open-webui, the absence of authentication mechanisms allows any unauthenticated attacker to access the `api/v1/utils/code/format` endpoint. If a malicious actor sends a POST request with an excessively high volume of content, the server could become completely unresponsive. This could lead to severe performance issues, causing the server to become unresponsive or experience significant degradation, ultimately resulting in service interruptions for legitimate users.",
  "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"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "npm",
      "name" : "open-webui"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "0.3.32"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2024-12537"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/open-webui/open-webui"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/open-webui/open-webui/blob/e8babe62bc8e466be0367703fd062a981f5c2394/src/lib/apis/utils/index.ts#L25-L56"
  }, {
    "type" : "WEB",
    "url" : "https://huntr.com/bounties/edabd06c-acc0-428c-a481-271f333755bc"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-400", "CWE-770" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-03-21T17:29:26Z",
    "nvd_published_at" : "2025-03-20T10:15:29Z"
  }
}

CVSS V3

7.5 HIGH