{"id":"CVE-2026-16896","aliases":["EUVD-2026-58378","GHSA-5j9j-5mc9-fhx9"],"status":"published","title":"IBM i is Affected By Multiple Vulnerabilities in Network Authentication Service","description":"IBM i 7.6, 7.5, 7.4, and 7.3 could allow a local authenticated attacker to obtain unauthorized access to files due to a time-of-check time-of-use (TOCTOU) race condition.","severity":{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.001,"percentile":0.00843,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-367"],"published":"2026-08-13T19:51:47Z","modified":"2026-08-17T17:11:57Z","products":[{"vendor":"ibm","product":"i"}],"references":[{"url":"https://www.ibm.com/support/pages/node/7283293","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-16896"},{"url":"https://github.com/advisories/GHSA-5j9j-5mc9-fhx9"}],"sources":{"cve":[{"id":"CVE-2026-16896","title":"IBM i is Affected By Multiple Vulnerabilities in Network Authentication Service","description":"IBM i 7.6, 7.5, 7.4, and 7.3 could allow a local authenticated attacker to obtain unauthorized access to files due to a time-of-check time-of-use (TOCTOU) race condition.","status":"published","published":"2026-08-13T19:51:47.156Z","modified":"2026-08-14T18:28:16.556Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-367"],"updated_at":"2026-11-02T14:20:10.870108Z"}],"euvd":[{"id":"EUVD-2026-58378","description":"IBM i 7.6, 7.5, 7.4, and 7.3 could allow a local authenticated attacker to obtain unauthorized access to files due to a time-of-check time-of-use (TOCTOU) race condition.","status":"published","published":"2026-08-13T19:51:47Z","modified":"2026-08-14T18:28:16Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T18:01:53.534541Z"}],"ghsa":[{"id":"GHSA-5j9j-5mc9-fhx9","title":"IBM i 7.6, 7.5, 7.4, and 7.3 could allow a local authenticated attacker to obtain unauthorized...","description":"IBM i 7.6, 7.5, 7.4, and 7.3 could allow a local authenticated attacker to obtain unauthorized access to files due to a time-of-check time-of-use (TOCTOU) race condition.","status":"published","published":"2026-08-13T21:36:06Z","modified":"2026-08-13T21:36:14Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-367"],"updated_at":"2026-11-02T15:10:26.766632Z"}],"nvd":[{"id":"CVE-2026-16896","description":"IBM i 7.6, 7.5, 7.4, and 7.3 could allow a local authenticated attacker to obtain unauthorized access to files due to a time-of-check time-of-use (TOCTOU) race condition.","status":"published","published":"2026-08-13T20:17:16.4Z","modified":"2026-08-17T17:11:57.033Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"secondary"},{"version":"3.1","score":4.7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-367"],"updated_at":"2026-11-02T14:12:37.557758Z"}]}}