CVE-2024-12534

HIGH

open-webui v0.3.32 - Unauthenticated Denial of Service via Large Payload Submission

Title source: llm
STIX 2.1

Description

In version v0.3.32 of open-webui/open-webui, the application allows users to submit large payloads in the email and password fields during the sign-in process due to the lack of character length validation on these inputs. This vulnerability can lead to a Denial of Service (DoS) condition when a user submits excessively large strings, exhausting server resources such as CPU, memory, and disk space, and rendering the service unavailable for legitimate users. This makes the server susceptible to resource exhaustion attacks without requiring authentication.

References (1)

Core 1
Core References

Scores

CVSS v3 7.5
EPSS 0.0062
EPSS Percentile 70.1%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact partial

Details

CWE
CWE-400
Status published
Products (3)
npm/open-webui 0npm
openwebui/open_webui 0.3.32
pypi/open-webui 0PyPI
Published Mar 20, 2025
Tracked Since Feb 18, 2026