{"id":"CVE-2026-40939","aliases":["GHSA-gj7p-595x-qwf5"],"url":"https://o3.security/vulnerability/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.","published":"2026-04-21T21:07:10.503Z","modified":"2026-08-07T21:27:16.927380Z","cvss":null,"epss":{"score":0.00154,"percentile":0.0506,"asOf":"2026-08-07"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"dev.dsf:dsf-common-jetty","fixedVersion":null},{"ecosystem":"Maven","name":"dev.dsf:dsf-fhir-server","fixedVersion":null},{"ecosystem":"Maven","name":"dev.dsf:dsf-bpe-server","fixedVersion":null}],"fix":{"url":"https://github.com/datasharingframework/dsf/commit/f4ecb002f7d12642f92da6b79371ed367d0140e7","label":"datasharingframework/dsf@f4ecb00"},"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"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T21:27:16.927380Z"}}