{"id":"CVE-2015-9240","aliases":["EUVD-2018-0194","GHSA-39pj-gq8q-9pfj"],"status":"published","title":"Authentication Weakness in keystone","description":"Due to a bug in the the default sign in functionality in the keystone node module before 0.3.16, incomplete email addresses could be matched. A correct password is still required to complete sign in.","severity":{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00859,"percentile":0.58736,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-1255","CWE-255"],"published":"2018-05-29T20:00:00Z","modified":"2026-06-17T00:36:07Z","fixes":[{"ecosystem":"npm","package":"keystone","fixed_in":["0.3.16"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"keystone","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.3.16"}]}]},{"source":"osv","ecosystem":"npm","package":"keystone","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.3.16"}]}]}],"products":[{"vendor":"hackerone","product":"keystone node module"},{"vendor":"keystonejs","product":"keystone"}],"references":[{"url":"https://nodesecurity.io/advisories/60","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2015-9240","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-39pj-gq8q-9pfj","tags":["advisory"]},{"url":"https://www.npmjs.com/advisories/60","tags":["web"]},{"url":"https://www.npmjs.com/package/keystone","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2015-9240","description":"Due to a bug in the the default sign in functionality in the keystone node module before 0.3.16, incomplete email addresses could be matched. A correct password is still required to complete sign in.","status":"published","published":"2018-05-29T20:00:00Z","modified":"2024-09-16T22:56:15.711Z","updated_at":"2026-11-02T14:35:40.591596Z"}],"euvd":[{"id":"EUVD-2018-0194","description":"Due to a bug in the the default sign in functionality in the keystone node module before 0.3.16, incomplete email addresses could be matched. A correct password is still required to complete sign in.","status":"published","published":"2018-05-29T20:00:00Z","modified":"2024-09-16T22:56:15Z","updated_at":"2026-11-03T00:54:58.800859Z"}],"ghsa":[{"id":"GHSA-39pj-gq8q-9pfj","title":"Authentication Weakness in keystone","description":"Versions of `keystone` prior to 0.3.16 are affected by a partial authentication bypass vulnerability. In the default sign in functionality, if an attacker provides a full and correct password, yet only provides part of the associated email address, authentication will be granted.\n\n\n## Recommendation\n\nUpdate to version 0.3.16 or later.","status":"published","published":"2018-06-07T19:43:20Z","modified":"2023-01-09T05:02:43Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"cwes":["CWE-1255"],"updated_at":"2026-11-02T14:36:03.768255Z"}],"nvd":[{"id":"CVE-2015-9240","description":"Due to a bug in the the default sign in functionality in the keystone node module before 0.3.16, incomplete email addresses could be matched. A correct password is still required to complete sign in.","status":"published","published":"2018-05-29T20:29:00.393Z","modified":"2026-06-17T00:36:07.09Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-255"],"updated_at":"2026-11-02T14:03:19.244941Z"}],"osv":[{"id":"GHSA-39pj-gq8q-9pfj","title":"Authentication Weakness in keystone","description":"Versions of `keystone` prior to 0.3.16 are affected by a partial authentication bypass vulnerability. In the default sign in functionality, if an attacker provides a full and correct password, yet only provides part of the associated email address, authentication will be granted.\n\n\n## Recommendation\n\nUpdate to version 0.3.16 or later.","status":"published","published":"2018-06-07T19:43:20Z","modified":"2023-11-08T03:58:04.368418Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"cwes":["CWE-1255"],"updated_at":"2026-11-02T15:46:35.406455Z"}]}}