{"id":"CVE-2026-90769","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-90769","summary":"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…","details":"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.","published":"2026-09-13T11:17:01.270","modified":"2026-09-13T11:17:01.270","cvss":{"score":7.7,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":{"url":"https://github.com/lfnovo/open-notebook/commit/9045ea50196927eac7de647bb5b7009349236fb4","label":"lfnovo/open-notebook@9045ea5"},"references":[{"type":"WEB","url":"https://github.com/lfnovo/open-notebook"},{"type":"WEB","url":"https://github.com/lfnovo/open-notebook/blob/8889087e317177d7b6e286342ab34e0c9c01d43e/api/routers/sources.py"},{"type":"WEB","url":"https://github.com/lfnovo/open-notebook/commit/9045ea50196927eac7de647bb5b7009349236fb4"},{"type":"WEB","url":"https://github.com/lfnovo/open-notebook/issues/1284"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/open-notebook-before-1.11.0-server-side-request-forgery-via-link-source"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-09-13T11:17:01.270"}}