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CVE-2024-7983

Date: March 20, 2025

In version 0.3.8 of open-webui, an endpoint for converting markdown to HTML is exposed without authentication. A maliciously crafted markdown payload can cause the server to spend excessive time converting it, leading to a denial of service. The server becomes unresponsive to other requests until the conversion is complete.

Severity Score

Related Resources (5)

https://github.com/open-webui/open-webui/blob/eff736acd2e0bbbdd0eeca4cc209b216a1f23b6a/backend/apps/webui/routers/utils.py#L49
https://huntr.com/bounties/f8156ca5-1328-480f-a72b-8d3dfdad87dc
https://nvd.nist.gov/vuln/detail/CVE-2024-7983
https://github.com/open-webui/open-webui
https://www.mend.io/vulnerability-database/CVE-2024-7983

Severity Score

Weakness Type (CWE)

Uncontrolled Resource Consumption

CWE-400

Allocation of Resources Without Limits or Throttling

CWE-770

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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