Open WebUI has inconsistent authorization controls within memories API

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

8.3 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L

EPSS

• CVE-2026-44570: 0.29% estimated exploitation activity in the next 30 days; percentile 22.13 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Summary Authorization controls surrounding the memories API were inconsistent, resulting in the ability of a standard user to delete, restore, and view the contents of other users' memories. Details Using a newly created non-admin user with no existing memories, it is possible to view existing memories via POST /api/v1/memories/query. See below under the PoC section, where a call to GET /api/v1/memories/ returns [] (as expected) but a call to POST /api/v1/memories/query reveals memories created by other users. Similarly, even if a non-admin user cannot modify another user's memory data via POST /api/v1/memories/{memoryid}/update, the endpoint's response improperly leaks the content of that memory if a valid memoryid is known. The DELETE /api/v1/memories/{memoryid} can also be used by any user to delete an existing memory. Deleted memories can then be restored by calling the POST /api/v1/memories/{memoryid}/update endpoint again. PoC 1 Example of a user with no memories able to query…

Published by the source

11 May 2026, 14:25 UTC

Last modified by the source

3 Aug 2026, 12:03 UTC

Source last checked

26 Oct 2026, 13:50 UTC

1. Revision 2 · amended · 26 Oct 2026

   Amended from ghsa record GHSA-hmjq-crxp-7rjw

2. Revision 1 · created · 24 Oct 2026

   Published from osv record GHSA-hmjq-crxp-7rjw

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

# Patch Next advisory brief: CVE-2026-44570

Advisory: Open WebUI has inconsistent authorization controls within memories API
IDs: CVE-2026-44570, GHSA-hmjq-crxp-7rjw
Record: https://patchnext.com/advisories/cve-2026-44570 (revision 2, source checked 26 Oct 2026, 13:50 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 8.3)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: open-webui 0.6.19. A vendor fix does not mean a deployment is fixed.

## Affected components
- PyPI open-webui: affected < 0.6.19; fixed in 0.6.19

## Suggested inspection (read-only)
- `python -m pip show open-webui`: prints the installed version. Run with the environment that serves production active.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## 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-hmjq-crxp-7rjw (OSV record GHSA-hmjq-crxp-7rjw lists affected ranges: PyPI open-webui >=0 <0.6.19 (fixed))
- Verified: https://github.com/advisories/GHSA-hmjq-crxp-7rjw (GitHub-reviewed advisory GHSA-hmjq-crxp-7rjw lists affected ranges: PyPI open-webui >=0 <0.6.19)

Commands are suggestions: review each one before running it.