CVE-2026-54014— Open WebUI 路径遍历漏洞

Open WebUI: Sibling-Prefix Path Traversal via /cache/{path} in open-webui/open-webui

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, a path traversal vulnerability exists in open-webui's cache file serving endpoint that allows any authenticated user to read files from sibling directories outside the intended cache directory, by exploiting an incomplete startswith containment check that lacks a trailing path separator. The root cause is that serve_cache_file() in open_webui/main.py validates the resolved path with file_path.startswith(os.path.abspath(CACHE_DIR)) — without appending os.sep. This allows any path resolving to a sibling directory whose name begins with cache (e.g. cache_sibling, cache_backup, cached_models) to pass validation. This vulnerability is fixed in 0.9.6.

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

对路径名的限制不恰当(路径遍历)

Open WebUI 路径遍历漏洞

Open WebUI是Open WebUI团队开源的一个可扩展、功能丰富、用户友好的自托管 WebUI。 Open WebUI 0.9.6之前版本存在路径遍历漏洞，该漏洞源于缓存文件服务端点的startswith检查不完整且缺少尾随路径分隔符，可能导致任何已认证用户读取预期缓存目录之外的同级目录中的文件。

N/A

N/A