{"id":"PYSEC-2026-3604","summary":"Open WebUI: POST /api/v1/images/edit bypasses the global image-edit switch and the per-user image-generation permission","details":"## Summary\n\n`POST /api/v1/images/edit` performed no authorization beyond requiring a verified account. Every other image-editing surface in Open WebUI enforces the global image-edit switch and the per-user image-generation permission — the `/api/v1/images/generations` route, the built-in `edit_image` tool, and the chat image-edit middleware — but the direct edit route enforced neither. A verified non-admin user could therefore invoke server-side image editing, reaching the configured image-edit provider with the administrator's credentials, even when the administrator had globally disabled image editing (`ENABLE_IMAGE_EDIT=False`) or denied that user image-generation permission. The image-editing UI is surfaced only to administrators (Playground), so the route additionally exposed an admin-only capability to any verified user.\n\n## Impact\n\nAn authenticated, non-admin user can:\n\n- bypass the global `ENABLE_IMAGE_EDIT=False` administrator control;\n- bypass a denied per-user/group `features.image_generation` permission;\n- cause the server to send billable image-edit requests to the configured provider (OpenAI-compatible, Gemini, or ComfyUI) using administrator-configured credentials (`IMAGES_EDIT_OPENAI_API_KEY` for the OpenAI engine).\n\nNo cross-user data is exposed and the provider credentials are never returned to the caller; the impact is the control/permission bypass and the associated billable resource consumption.\n\n## Affected Versions\n\n`\u003e= 0.8.11, \u003c 0.10.0` (the `/api/v1/images/edit` route was introduced in 0.8.11 and was ungated from the outset). Fixed in **v0.10.0**.\n\n## Details\n\n`/api/v1/images/generations` enforces `ENABLE_IMAGE_GENERATION` (403 if globally disabled) and `features.image_generation` (403 for non-admins without the permission). The `edit_image` built-in tool and the chat image-edit middleware likewise gate on `ENABLE_IMAGE_EDIT` and `features.image_generation`. The direct `POST /api/v1/images/edit` route ran on `Depends(get_verified_user)` alone and proceeded straight to provider dispatch, applying none of these controls.\n\n## Proof of Concept\n\nAs a verified non-admin user, with image editing globally disabled (`ENABLE_IMAGE_EDIT=False`) or `features.image_generation` denied for the user:\n\n```http\nPOST /api/v1/images/edit\nAuthorization: Bearer \u003cnon_admin_user_token\u003e\nContent-Type: application/json\n\n{\"image\":\"data:image/png;base64,\u003cpng\u003e\",\"prompt\":\"edit\",\"model\":\"gpt-image-1\"}\n```\n\nThe request reaches the configured image-edit provider and returns an edited image despite the disabled control/permission.\n\n## Patch\n\nThe direct route is split from its shared implementation (mirroring `generate_images`/`image_generations`): a thin `/edit` route now enforces `ENABLE_IMAGE_EDIT` and the per-user `features.image_generation` permission before delegating to the shared `image_edits()` implementation. The internal callers (the `edit_image` tool and the chat middleware) call the implementation directly and already gate themselves, so they are unaffected.","aliases":["CVE-2026-59227","GHSA-rqj7-6wrp-6g2g"],"modified":"2026-08-04T14:30:29.519042665Z","published":"2026-08-04T11:34:42.578333Z","references":[{"type":"WEB","url":"https://github.com/open-webui/open-webui/security/advisories/GHSA-rqj7-6wrp-6g2g"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-59227"},{"type":"WEB","url":"https://github.com/open-webui/open-webui/pull/26009"},{"type":"WEB","url":"https://github.com/open-webui/open-webui/commit/e038bab66dec8d17212eec35b5cb6d6b785a4200"},{"type":"PACKAGE","url":"https://github.com/open-webui/open-webui"},{"type":"WEB","url":"https://github.com/open-webui/open-webui/releases/tag/v0.10.0"},{"type":"PACKAGE","url":"https://pypi.org/project/open-webui"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-rqj7-6wrp-6g2g"}],"affected":[{"package":{"name":"open-webui","ecosystem":"PyPI","purl":"pkg:pypi/open-webui"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.8.11"},{"fixed":"0.10.0"}]}],"versions":["0.8.11","0.8.12","0.9.0","0.9.1","0.9.2","0.9.3","0.9.4","0.9.5","0.9.6"],"database_specific":{"source":"https://github.com/pypa/advisory-database/blob/main/vulns/open-webui/PYSEC-2026-3604.yaml"}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L"}]}