HIGH

CVE-2026-90769

2026-09-13 CVSS v3.1

CVSS

7.7

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.

Weakness (CWE)

CWE-918 Server-Side Request Forgery (SSRF)

EPSS Score

0.26%

Probability of exploitation in next 30 days

17.8th percentile

References

https://github.com/lfnovo/open-notebook https://github.com/lfnovo/open-notebook/blob/8889087e317177d7b6e286342ab34e0c9c01d43e/api/routers/sources.py https://github.com/lfnovo/open-notebook/commit/9045ea50196927eac7de647bb5b7009349236fb4 https://github.com/lfnovo/open-notebook/issues/1284 https://www.vulncheck.com/advisories/open-notebook-before-1.11.0-server-side-request-forgery-via-link-source

View on dbcve.org

Base CVE data derived from NVD (public domain). Enrichment by dbcve.org (CC-BY-4.0). Fetched via API.

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