{"id":"CVE-2026-40939","summary":"DSF: Missing Session Timeout for OIDC Sessions","details":"The Data Sharing Framework (DSF) implements a distributed process engine based on the BPMN 2.0 and FHIR R4 standards. Prior to 2.1.0, OIDC-authenticated sessions had no configured maximum inactivity timeout. Sessions persisted indefinitely after login, even after the OIDC access token expired. This vulnerability is fixed in 2.1.0.","aliases":["GHSA-gj7p-595x-qwf5"],"modified":"2026-07-08T08:15:01.695436696Z","published":"2026-04-21T21:07:10.503Z","database_specific":{"cwe_ids":["CWE-613"],"cna_assigner":"GitHub_M","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40939.json"},"references":[{"type":"WEB","url":"https://dsf.dev/operations/v2.1.0/bpe/oidc.html"},{"type":"WEB","url":"https://dsf.dev/operations/v2.1.0/fhir/oidc.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40939.json"},{"type":"ADVISORY","url":"https://github.com/datasharingframework/dsf/security/advisories/GHSA-gj7p-595x-qwf5"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-40939"},{"type":"FIX","url":"https://github.com/datasharingframework/dsf/commit/f4ecb002f7d12642f92da6b79371ed367d0140e7"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/datasharingframework/dsf","events":[{"introduced":"0"},{"fixed":"f4ecb002f7d12642f92da6b79371ed367d0140e7"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"2.1.0"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-40939.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N"}]}