CVE-2026-54018— Open WebUI: SSRF Protection Bypass in Playwright Web Loader via HTTP Redirects
Possible ATT&CK Techniques 1AI
T1557.002 · ARP Cache PoisoningAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| open-webui | open-webui | < 0.9.6 | affected |
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2026-54018
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
Open WebUI: SSRF Protection Bypass in Playwright Web Loader via HTTP Redirects
Source: CVE Program / CVE List V5
Vulnerability Description
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, the SafePlaywrightURLLoader implements a validate_url function to prevent SSRF attacks by checking the IP address of the user-provided URL. However, this validation is performed only on the initial URL. Since Playwright automatically follows HTTP redirects (301/302) by default, an attacker can bypass the validation by providing a safe URL that redirects to a restricted internal network address (e.g., localhost, Docker container network, or Cloud Metadata). This allows the application to access internal services despite ENABLE_RAG_LOCAL_WEB_FETCH being set to False This vulnerability is fixed in 0.9.6.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
Open WebUI 服务端请求伪造漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
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之前版本存在服务端请求伪造漏洞，该漏洞源于SafePlaywrightURLLoader中的validate_url函数仅对初始URL进行IP检查验证，但由于Playwright默认跟随HTTP重定向，攻击者可通过提供安全URL来绕过验证，导致应用程序访问受限内部网络地址。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| open-webui | open-webui | < 0.9.6 | - |
II. Public POCs for CVE-2026-54018
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
Qwen3.6-35B-A3B · 8194 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month
III. Intelligence Information for CVE-2026-54018
请登录查看更多情报信息。
Vendor Advisories for CVE-2026-54018 (1)
Same Patch Batch · open-webui · 2026-06-23 · 15 CVEs total
| CVE-2026-54011 | 8.7 HIGH | Open WebUI: Stored XSS in Mermaid Markdown Preview |
| CVE-2026-54008 | 8.5 HIGH | Open WebUI: Redirect-Bypass SSRF in OAuth `_process_picture_url` |
| CVE-2026-54010 | 8.3 HIGH | Open WebUI: Forged chat-file link allows cross-user file read and deletion |
| CVE-2026-54013 | 7.6 HIGH | Open WebUI: Stored XSS to Account Takeover via Model Profile Images in Open WebUI |
| CVE-2026-54012 | 7.1 HIGH | Open WebUI: Forged model meta.knowledge allows cross-user file read and deletion |
| CVE-2026-54009 | 6.5 MEDIUM | Open WebUI: Cross-user file disclosure via /api/chat/completions image_url field |
| CVE-2026-54019 | 6.5 MEDIUM | Open WebUI: RAG ACL Bypass in Milvus Multitenancy Mode |
| CVE-2026-54015 | 6.4 MEDIUM | Open WebUI: Prompt history IDOR: unbound history_id allows cross-prompt read and deletion |
| CVE-2026-54021 | 6.3 MEDIUM | Open WebUI: Authenticated users can target arbitrary configured Ollama backends via unguar |
| CVE-2026-54022 | 5.3 MEDIUM | Open WebUI: Any authenticated user can read other users' private notes via Socket.IO |
| CVE-2026-54016 | 4.3 MEDIUM | Open WebUI: Open WebUI BOLA: `search_knowledge_files` Allows Unauthorized Knowledge Base F |
| CVE-2026-54006 | 4.3 MEDIUM | Open WebUI: Calendar event re-parenting allows writing events into another user's calendar |
| CVE-2026-54014 | 4.3 MEDIUM | Open WebUI: Sibling-Prefix Path Traversal via /cache/{path} in open-webui/open-webui |
| CVE-2026-54007 | Open WebUI: Cross-origin postMessage confirmation bypass via action:submit |
IV. Related Vulnerabilities
Same product: open-webui
- CVE-2026-59714
Open WebUI: Cross-channel message overwrite via chat complet - CVE-2026-70494
Open WebUI: A folder write-collaborator can permanently dele - CVE-2026-70493
Open WebUI: Any authenticated user can stall a worker via a - CVE-2026-70492
Open WebUI: Stored XSS via unescaped KaTeX render-error fall - CVE-2026-70491
Open WebUI: Tool source code disclosed to read-only users vi
Same vendor: open-webui
- CVE-2026-59714
Open WebUI: Cross-channel message overwrite via chat complet - CVE-2026-70494
Open WebUI: A folder write-collaborator can permanently dele - CVE-2026-70493
Open WebUI: Any authenticated user can stall a worker via a - CVE-2026-70492
Open WebUI: Stored XSS via unescaped KaTeX render-error fall - CVE-2026-70491
Open WebUI: Tool source code disclosed to read-only users vi
Same weakness: CWE-918
- CVE-2026-65985
FUXA: SSRF hardening for `device-webapi-request` - CVE-2026-47719
FUXA: Unauthenticated SSRF via Socket.IO DEVICE_WEBAPI_REQUE - CVE-2026-70666
Lemur: Server-Side Request Forgery via the ACME client follo - CVE-2026-71303
Lemur: Incomplete fix for CVE-2026-55166 -- ACME authority u - CVE-2026-55162
Lemur: Post-authentication SSRF via certificate verification
V. Comments for CVE-2026-54018
No comments yet