CVE Catalog

CVE-2026-70484

MediumCVSS 4.3
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.27%

19th percentile - higher than 19% of all known CVEs

Summary

Open WebUI from version 0.7.0 to 0.11.0 contains a vulnerability where the legacy chat-completions feature ignores the client-supplied image_generation flag and fails to re-check the image_generation permission. An authenticated user with revoked image-generation permission can still consume the configured image provider through chat completions.

Risk Assessment

The organization may incur unexpected costs from API usage and provider quota consumption, as well as storage usage for generated files, without exposure of credentials or other users' data. This can lead to financial and operational impact.

Recommendation

Upgrade Open WebUI to version 0.11.0 or later immediately. After upgrading, verify that image generation permissions are enforced across all API paths.

Other vulnerabilities in Open WebUI

See all
Original NVD description (English source)

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.7.0 until 0.11.0, the legacy chat-completions features block trusted a client-supplied image_generation flag and did not re-check the features.image_generation permission that the direct image routes and native function-calling path enforce. An authenticated user whose image-generation permission had been revoked could still consume the operator's configured image provider through chat completions, spending API credits and provider quota and writing generated files to operator storage, without exposing provider credentials or other users' data. This issue is fixed in 0.11.0.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS