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High, CVSS 7.5amended

Open WebUI Uncontrolled Resource Consumption vulnerability

CVE-2024-12534GHSA-g3mx-83mp-3rwc

What to do

Vendor response not established. Follow the primary source's mitigation guidance and check back for a fix.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

  • npm open-webui

    Affected
    <= 0.3.32
    Fixed in
    no fixed version recorded

  • PyPI open-webui

    Affected
    <= 0.3.32
    Fixed in
    no fixed version recorded

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS
7.5 · CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
No dated EPSS signal available.
Source description

As published by the source; long descriptions are shortened.

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.

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 2 · amended ·

    Amended from ghsa record GHSA-g3mx-83mp-3rwc

  2. Revision 1 · created ·

    Published from osv record GHSA-g3mx-83mp-3rwc

Agent brief

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: CVE-2024-12534

Advisory: Open WebUI Uncontrolled Resource Consumption vulnerability
IDs: CVE-2024-12534, GHSA-g3mx-83mp-3rwc
Record: https://patchnext.com/advisories/cve-2024-12534 (revision 2, source checked 26 Oct 2026, 12:36 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 7.5)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor response not established. A vendor fix does not mean a deployment is fixed.

## Affected components
- npm open-webui: affected <= 0.3.32
- PyPI open-webui: affected <= 0.3.32

## Suggested inspection (read-only)
- `npm ls open-webui --all`: lists every installed copy and version, including transitive ones. Run in the project root after `npm ci`.
- `python -m pip show open-webui`: prints the installed version. Run with the environment that serves production active.

## Supported action
No complete vendor fix is recorded. Follow the primary source's mitigation guidance and check this record again before closing anything.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on open-webui.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/GHSA-g3mx-83mp-3rwc (OSV record GHSA-g3mx-83mp-3rwc lists affected ranges: PyPI open-webui >=0 =0 <=0.3.32)
- Verified: https://github.com/advisories/GHSA-g3mx-83mp-3rwc (GitHub-reviewed advisory GHSA-g3mx-83mp-3rwc lists affected ranges: PyPI open-webui >=0 =0 <=0.3.32)

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