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CVE-2026-90769

Open Notebook before 1.11.0 Server-Side Request Forgery via link-source

CVSS 4.0 8.3 HIGHCVSS 3.1 7.7 HIGHCheck source for fixed versionsKEV status unknown
Original advisory

Historical advisory recorded 23 Oct 2026 15:48:27 UTC. Read the latest advisory.

cve-program · CVE-2026-90769

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-90769

Published

Open Notebook before 1.11.0 Server-Side Request Forgery via link-source

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.

Source published
13 Sep 2026 10:45:40 UTC
Source modified
24 Sep 2026 14:21:50 UTC
Saved here
23 Oct 2026 15:48:27 UTC
Source terms
CVE Program Terms of Use

Original source record · Cite this exact observation · Complete original publisher JSON

Source: cve-program · CVE Program Terms of Use. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

CVSS 4.0 · 8.3 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

CVSS 3.1 · 7.7 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

ChangeIntel

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Sources read 12 Nov 13:19 UTC · 273 of 275 readable · 271 fully read · documentation 469/469 current

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