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.

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Sun, 13 Sep 2026 11:00:00 +0000

Type Values Removed Values Added
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.
Title Open Notebook before 1.11.0 Server-Side Request Forgery via link-source
First Time appeared Lfnovo
Lfnovo open-notebook
Weaknesses CWE-918
CPEs cpe:2.3:a:lfnovo:open-notebook:*:*:*:*:*:*:*:*
Vendors & Products Lfnovo
Lfnovo open-notebook
References
Metrics cvssV3_1

{'score': 7.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N'}

cvssV4_0

{'score': 8.3, 'vector': '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'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-13T10:45:40.937Z

Reserved: 2026-09-13T10:14:52.461Z

Link: CVE-2026-90769

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-13T11:17:01.270

Modified: 2026-09-13T11:17:01.270

Link: CVE-2026-90769

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

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Weaknesses