{"id":"CVE-2019-4052","aliases":["EUVD-2019-13659","GHSA-xf58-rqhh-pcmh"],"status":"published","title":"IBM API Connect 2018.1 and 2018.4.1.2 apis can be leveraged by unauthenticated users to discover...","description":"IBM API Connect 2018.1 and 2018.4.1.2 apis can be leveraged by unauthenticated users to discover login ids of registered users. IBM X-Force ID: 156544.","severity":{"version":"3.0","score":8.2,"vector":"CVSS:3.0/C:H/I:L/S:U/AV:N/PR:N/AC:L/UI:N/A:N/RC:C/RL:O/E:U","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-08","score":0.01907,"percentile":0.79889,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2019-03-22T18:50:21Z","modified":"2026-06-17T02:36:04Z","products":[{"vendor":"ibm","product":"api connect"},{"vendor":"ibm","product":"api_connect"}],"references":[{"url":"http://www.ibm.com/support/docview.wss?uid=ibm10874248","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/156544","tags":["vdb-entry","x_refsource_XF","x_transferred","Broken Link","VDB Entry","Vendor Advisory"]},{"url":"http://www.securityfocus.com/bid/107559","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-4052"},{"url":"https://github.com/advisories/GHSA-xf58-rqhh-pcmh"}],"sources":{"cve":[{"id":"CVE-2019-4052","description":"IBM API Connect 2018.1 and 2018.4.1.2 apis can be leveraged by unauthenticated users to discover login ids of registered users. IBM X-Force ID: 156544.","status":"published","published":"2019-03-22T18:50:21.417Z","modified":"2024-09-16T23:56:41.057Z","cvss":[{"version":"3.0","score":8.2,"vector":"CVSS:3.0/C:H/I:L/S:U/AV:N/PR:N/AC:L/UI:N/A:N/RC:C/RL:O/E:U","level":"high","assessor":"cna"}],"updated_at":"2026-11-02T14:20:25.303966Z"}],"euvd":[{"id":"EUVD-2019-13659","description":"IBM API Connect 2018.1 and 2018.4.1.2 apis can be leveraged by unauthenticated users to discover login ids of registered users. IBM X-Force ID: 156544.","status":"published","published":"2019-03-22T18:50:21Z","modified":"2024-09-16T23:56:41Z","cvss":[{"version":"3.0","score":8.2,"vector":"CVSS:3.0/C:H/I:L/S:U/AV:N/PR:N/AC:L/UI:N/A:N/RC:C/RL:O/E:U","level":"high"}],"updated_at":"2026-11-03T00:29:03.409164Z"}],"ghsa":[{"id":"GHSA-xf58-rqhh-pcmh","title":"IBM API Connect 2018.1 and 2018.4.1.2 apis can be leveraged by unauthenticated users to discover...","description":"IBM API Connect 2018.1 and 2018.4.1.2 apis can be leveraged by unauthenticated users to discover login ids of registered users. IBM X-Force ID: 156544.","status":"published","published":"2022-05-13T01:22:29Z","modified":"2023-02-01T05:06:52Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T14:50:26.062502Z"}],"nvd":[{"id":"CVE-2019-4052","description":"IBM API Connect 2018.1 and 2018.4.1.2 apis can be leveraged by unauthenticated users to discover login ids of registered users. IBM X-Force ID: 156544.","status":"published","published":"2019-03-22T19:29:00.433Z","modified":"2026-06-17T02:36:04.587Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary"},{"version":"3.0","score":8.2,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N","level":"high","assessor":"secondary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:05:09.523883Z"}]}}