{"id":"CVE-2026-90769","summary":"Open Notebook before 1.11.0 Server-Side Request Forgery via link-source","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.","modified":"2026-09-15T03:48:22.891779538Z","published":"2026-09-13T10:45:40.937Z","database_specific":{"cna_assigner":"VulnCheck","cwe_ids":["CWE-918"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90769.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90769.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90769"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/open-notebook-before-1.11.0-server-side-request-forgery-via-link-source"},{"type":"REPORT","url":"https://github.com/lfnovo/open-notebook/issues/1284"},{"type":"FIX","url":"https://github.com/lfnovo/open-notebook/commit/9045ea50196927eac7de647bb5b7009349236fb4"},{"type":"PACKAGE","url":"https://github.com/lfnovo/open-notebook"},{"type":"ARTICLE","url":"https://github.com/lfnovo/open-notebook/blob/8889087e317177d7b6e286342ab34e0c9c01d43e/api/routers/sources.py"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/lfnovo/open-notebook","events":[{"introduced":"0"},{"fixed":"d9ad3917df581f6af4f9564f29e62dbdcd77a0db"},{"fixed":"9045ea50196927eac7de647bb5b7009349236fb4"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"1.11.0"}],"source":["DESCRIPTION","REFERENCES"]}}],"versions":["v1.10.0","v1.9.0","v1.8.5","v1.8.4","v1.8.3","v1.8.1","v1.8.0","v1.7.4","v1.7.3","v1.7.2","v1.7.1","v1.7.0","v1.6.2","v1.5.0","v1.4.0","v1.3.1","v1.3.0","v1.2.4","v1.2.0","v1.0.8","v0.3.2","v0.3.1","v0.3.0","v0.2.2","v0.2.0","v0.1.1","v0.1.0","v0.0.10","v0.0.9","v0.0.8","v0.0.7","v0.0.5","v0.0.4","v0.0.3","v0.0.2","v0.0.1-alpha"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90769.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"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"}]}