CVE-2026-45667

MEDIUM

Open WebUI Memories Endpoint - Unauthenticated Embedding Generation DoS

Title source: manual
STIX 2.1

Description

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.0, GET /api/v1/memories/ef is accessible without authentication and executes request.app.state.EMBEDDING_FUNCTION(...). This allows any unauthenticated caller to trigger embedding generation which can lead to direct cost exposure if a paid provider is used. This vulnerability is fixed in 0.8.0.

References (1)

Core 1
Core References

Scores

CVSS v3 6.5
EPSS 0.0002
EPSS Percentile 6.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact partial

Details

CWE
CWE-862
Status published
Products (3)
open-webui/open-webui < 0.8.0
openwebui/open_webui < 0.8.0
pypi/open-webui 0 - 0.8.0PyPI
Published May 15, 2026
Tracked Since May 16, 2026