{"id":"CVE-2026-44394","details":"An issue was discovered in OpenStack Keystone before 29.0.2. The Keystone federated token rescoping mechanism does not propagate the original token's expiry to the newly issued token. When a federated user rescopes a token via POST /v3/auth/tokens, the handle_scoped_token() function in the mapped authentication plugin returns response data without an expires_at value. The token provider falls back to issuing a token with a fresh default TTL. By rescoping repeatedly before each token expires, a user can maintain access indefinitely, bypassing operator-configured token lifetime policies. This is a variant of CVE-2012-3426. Only deployments using federated identity (SAML2, OpenID Connect) are affected.","aliases":["GHSA-whqr-fgm5-x77q","PYSEC-2026-603"],"modified":"2026-07-08T08:02:20.447689143Z","published":"2026-05-28T00:00:00Z","related":["CGA-v75m-8572-4j65"],"database_specific":{"cna_assigner":"mitre","cwe_ids":["CWE-863"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44394.json","unresolved_ranges":[{"extracted_events":[{"introduced":"14.0.0"},{"fixed":"27.0.2"},{"introduced":"28.0.0"},{"fixed":"28.0.2"},{"introduced":"29.0.0"},{"fixed":"29.0.2"}],"source":"AFFECTED_FIELD"},{"extracted_events":[{"introduced":"14.0.0"},{"fixed":"27.0.2"},{"introduced":"28.0.0"},{"fixed":"28.0.2"},{"introduced":"29.0.0"},{"fixed":"29.0.2"}],"source":"CPE_FIELD"},{"extracted_events":[{"fixed":"29.0.2"}],"source":"DESCRIPTION"}]},"references":[{"type":"WEB","url":"https://bugs.launchpad.net/keystone/+bug/2150379"},{"type":"WEB","url":"https://security.openstack.org/ossa/OSSA-2026-015.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44394.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-44394"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/openstack/keystone","events":[{"introduced":"c767e254979c96858a81cc4bbe8d9773d4dd539b"},{"fixed":"b896b71557ce8370c442fe05818a74d7a9a623a8"},{"introduced":"a568938e0c967a56ade269c93f42718008487b14"},{"fixed":"3dfbbe7b9bd11dcd64420da0e4eda48b637f4a70"},{"introduced":"3526925ae34a66e626bec985628a421a7694168e"},{"fixed":"7b9f39226744b8db50a6d702cc5f715fc9c17f37"}],"database_specific":{"extracted_events":[{"introduced":"14.0.0"},{"fixed":"27.0.2"},{"introduced":"28.0.0"},{"fixed":"28.0.2"},{"introduced":"29.0.0"},{"fixed":"29.0.2"}],"source":"CPE_RANGE","cpe":"cpe:2.3:a:openstack:keystone:*:*:*:*:*:*:*:*"}}],"versions":["29.0.1","28.0.1","29.0.0.0rc1","29.0.0","28.0.0.0rc1","28.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-44394.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L"}]}