Know every vulnerabilitybefore it knows you.
DevGuard continuously monitors your dependencies and alerts you when CVEs like this one affect your stack — with real-time threat intelligence built for developers.
GHSA-jgx9-jr5x-mvpv
No affected components available
Summary
There is a blind server side request forgery in the functionality that allows editing an image via a prompt. The affected function will perform a GET request on the URL provided by the user. There is no restriction on the domain of the provided URL allowing the local address space to be interacted with. Since the SSRF is blind (the response cannot be read) impact is port scanning of the local network because it can be confirmed if the port is open based on if the GET request failed.
Details
The vulnerability occurs here:
https://github.com/open-webui/open-webui/blob/2b26355002064228e9b671339f8f3fb9d1fafa73/backend/open_webui/routers/images.py#L850-L916
Line 911 shows the user provided URL passed to the function load_url_image. Within this function on line 883 HTTP/HTTPs URLs are trusted blindly and called asynchronously with requests.get.
PoC
The vulnerability can be reproduced with the following curl command:
curl -X POST http://localhost:3000/api/v1/images/edit \
-H "Authorization: Bearer <token>" \
-H "Content-Type: application/json" \
-d '{"form_data":{
"image": "<url>",
"prompt": "poc"}
}'
Impact
Response differentials can be used to port scan the local network: <img width="3016" height="736" alt="image" src="https://github.com/user-attachments/assets/93b4df52-b23c-4ed7-a5fa-9cbedb30091c" /> This can be automated to iterate through the entire port range to determine open ports. If the service running on an open port can be inferred the user may be able to interact with it in a meaningful way if the service offers any state changing GET request endpoints.
Remediation
Restrict provided URLs from local address space.
The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker needs basic access or low-level privileges. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a low impact on the confidentiality of the information.
Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.
The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
Browse More
Continuously monitor your dependencies and get alerted when vulnerabilities like this one affect your stack.
Checkout DevGuard