CVE-2026-90769
Open Notebook before 1.11.0 Server-Side Request Forgery via link-source
- State
- Published
- Severity
- 8.3 High
- Published
- Sep 13, 2026
- Updated
- Sep 24, 2026
- Reserved
- Sep 13, 2026
Description
Open Notebook before 1.11.0 fails to validate the URL parameter in POST /api/sources endpoint, allowing authenticated users to perform server-side requests to internal services. Attackers can supply arbitrary URLs to read cloud metadata, internal network services, and localhost-bound services through the application server's direct HTTP requests.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.3 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N | VulnCheck |
| 3.1 | 7.7 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N | VulnCheck |
Weaknesses
- CWE-918 Server-Side Request Forgery (SSRF)
Affected Products
| Product | Versions |
|---|---|
open-notebooklfnovo |
|
References
- GitHub Issue #1284issue-tracking
- https://github.com/lfnovo/open-notebookproduct
- https://github.com/lfnovo/open-notebook/blob/8889087e317177d7b6e286342ab34e0c9c01d43e/api/routers/sources.pytechnical-description
- https://github.com/lfnovo/open-notebook/commit/9045ea50196927eac7de647bb5b7009349236fb4patch
- VulnCheck Advisory: Open Notebook before 1.11.0 Server-Side Request Forgery via link-sourcethird-party-advisory
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