GHSA-j2c8-v969-8r5c · Severity: medium · Ecosystem: pip — Open WebUI: Sibling-Prefix Path Traversal via /cache/{path}
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.
Conclusion & alert: CVE-2026-54014 is rated Exploit Available (50/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.23%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-24 | 0.04% | 0.23% | +0.19% |
| 2 | 2026-06-12 | — | 0.04% | — |
Full EPSS history (2 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 4.3 | 3.1 | MEDIUM |
|
2.8 | 1.4 | [email protected] |
GHSA-j2c8-v969-8r5c · Severity: medium · Ecosystem: pip — Open WebUI: Sibling-Prefix Path Traversal via /cache/{path}
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| openwebui | open_webui | < 0.9.6 | cpe:2.3:a:openwebui:open_webui:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://github.com/open-webui/open-webui/security/advisories/GHSA-j2c8-v969-8r5c | Exploit Vendor Advisory Mitigation |