CVE-2026-33953
Server-Side Request Forgery in LinkAce Allows Internal Access
Publication date: 2026-03-27
Last updated on: 2026-03-31
Assigner: GitHub, Inc.
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| linkace | linkace | to 2.5.3 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-918 | The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. |
Attack-Flow Graph
AI Powered Q&A
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, upgrade LinkAce to version 2.5.3 or later, as this version patches the issue.
Can you explain this vulnerability to me?
The vulnerability exists in LinkAce versions prior to 2.5.3, a self-hosted archive for collecting website links. Although these versions block direct requests to private IP addresses, they still allow server-side requests to internal-only resources if those resources are referenced through an internal hostname. This means an authenticated user can cause the LinkAce server to make requests to internal services that are not accessible directly from outside the network.
How can this vulnerability impact me? :
This vulnerability can allow an authenticated user to access internal services that are normally protected from external access. This could lead to unauthorized information disclosure or interaction with internal systems, potentially compromising sensitive data or internal network security.