{"id":"CVE-2026-75878","aliases":["EUVD-2026-83300","GHSA-652p-cfff-8crm"],"status":"published","title":"IBM Sterling File Gateway is Vulnerable to Authentication Bypass","description":"IBM Sterling File Gateway could allow a remote attacker to bypass authentication and obtain a fully authenticated session due to improper authentication via an unvalidated SSO header.","severity":{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00644,"percentile":0.51338,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287"],"published":"2026-09-18T19:22:17Z","modified":"2026-09-22T19:32:25Z","products":[{"vendor":"ibm","product":"sterling file gateway"}],"references":[{"url":"https://www.ibm.com/support/pages/node/7287497","tags":["vendor-advisory","patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-75878"},{"url":"https://github.com/advisories/GHSA-652p-cfff-8crm"}],"sources":{"cve":[{"id":"CVE-2026-75878","title":"IBM Sterling File Gateway is Vulnerable to Authentication Bypass","description":"IBM Sterling File Gateway could allow a remote attacker to bypass authentication and obtain a fully authenticated session due to improper authentication via an unvalidated SSO header.","status":"published","published":"2026-09-18T19:22:17.649Z","modified":"2026-09-19T14:11:40.461Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical","assessor":"cna"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:20:07.260654Z"}],"euvd":[{"id":"EUVD-2026-83300","description":"IBM Sterling File Gateway could allow a remote attacker to bypass authentication and obtain a fully authenticated session due to improper authentication via an unvalidated SSO header.","status":"published","published":"2026-09-18T19:22:17Z","modified":"2026-09-19T14:11:40Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical"}],"updated_at":"2026-11-02T17:28:06.658724Z"}],"ghsa":[{"id":"GHSA-652p-cfff-8crm","title":"IBM Sterling File Gateway could allow a remote attacker to bypass authentication and obtain a...","description":"IBM Sterling File Gateway could allow a remote attacker to bypass authentication and obtain a fully authenticated session due to improper authentication via an unvalidated SSO header.","status":"published","published":"2026-09-18T21:32:25Z","modified":"2026-09-18T21:32:35Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T15:12:12.782251Z"}],"nvd":[{"id":"CVE-2026-75878","description":"IBM Sterling File Gateway could allow a remote attacker to bypass authentication and obtain a fully authenticated session due to improper authentication via an unvalidated SSO header.","status":"published","published":"2026-09-18T20:17:21.363Z","modified":"2026-09-22T19:32:25.73Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical","assessor":"secondary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:12:50.043898Z"}]}}