7.5
HIGH
CVE-2024-9840
Apache Open-WebUI Multipart Boundary Denial of Service
Description

Rejected reason: ** REJECT ** DO NOT USE THIS CVE ID NUMBER. The Rejected CVE Record is a duplicate of CVE-2024-53981. Notes: All CVE users should reference CVE-2024-53981 instead of this CVE Record. All references and descriptions in this candidate have been removed to prevent accidental usage.

INFO

Published Date :

March 20, 2025, 10:15 a.m.

Last Modified :

April 15, 2025, 4:15 p.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2024-9840 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Openwebui open_webui

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2024-9840 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2024-9840 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Rejected by [email protected]

    Apr. 15, 2025

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Apr. 15, 2025

    Action Type Old Value New Value
    Changed Description A Denial of Service (DoS) vulnerability exists in open-webui/open-webui version 0.3.21. This vulnerability affects multiple endpoints, including `/ollama/models/upload`, `/audio/api/v1/transcriptions`, and `/rag/api/v1/doc`. The application processes multipart boundaries without authentication, leading to resource exhaustion. By appending additional characters to the multipart boundary, an attacker can cause the server to parse each byte of the boundary, ultimately leading to service unavailability. This vulnerability can be exploited remotely, resulting in high CPU and memory usage, and rendering the service inaccessible to legitimate users. Rejected reason: ** REJECT ** DO NOT USE THIS CVE ID NUMBER. The Rejected CVE Record is a duplicate of CVE-2024-53981. Notes: All CVE users should reference CVE-2024-53981 instead of this CVE Record. All references and descriptions in this candidate have been removed to prevent accidental usage.
    Removed CVSS V3 huntr.dev: AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Removed CWE huntr.dev: CWE-400
    Removed Reference huntr.dev: https://huntr.com/bounties/9178f09e-4d4f-4a5b-bc32-cada7445b03c
  • New CVE Received by [email protected]

    Mar. 20, 2025

    Action Type Old Value New Value
    Added Description A Denial of Service (DoS) vulnerability exists in open-webui/open-webui version 0.3.21. This vulnerability affects multiple endpoints, including `/ollama/models/upload`, `/audio/api/v1/transcriptions`, and `/rag/api/v1/doc`. The application processes multipart boundaries without authentication, leading to resource exhaustion. By appending additional characters to the multipart boundary, an attacker can cause the server to parse each byte of the boundary, ultimately leading to service unavailability. This vulnerability can be exploited remotely, resulting in high CPU and memory usage, and rendering the service inaccessible to legitimate users.
    Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Added CWE CWE-400
    Added Reference https://huntr.com/bounties/9178f09e-4d4f-4a5b-bc32-cada7445b03c
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2024-9840 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2024-9840 weaknesses.

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
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Latest DB Update: Apr. 22, 2025 7:00