{"id":"CVE-2026-75421","aliases":["DEBIAN-CVE-2026-75421","EUVD-2026-66178","GHSA-8w4g-6qwv-67hv","UBUNTU-CVE-2026-75421","openSUSE-SU-2026:11843-1","openSUSE-SU-2026:21997-1"],"status":"published","title":"aria2 \u003c=1.37.0 has a stack-buffer-underflow vulnerability in the IOFile::getLine() function.","description":"aria2 \u003c=1.37.0 has a stack-buffer-underflow vulnerability in the IOFile::getLine() function.","severity":{"version":"3.1","score":4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-11","score":0.00157,"percentile":0.04975,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-121"],"published":"2026-08-25T00:00:00Z","modified":"2026-10-17T13:01:05Z","fixes":[{"ecosystem":"openSUSE:Tumbleweed","package":"aria2","fixed_in":["1.37.0-3.1"],"sources":["osv"]},{"ecosystem":"openSUSE:Leap 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16.0","package":"aria2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.37.0-bp160.2.1"}]}]}],"references":[{"url":"https://github.com/aria2/aria2/issues/2375","tags":["report"]},{"url":"https://github.com/aria2/aria2/pull/2376","tags":["report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-75421"},{"url":"https://github.com/advisories/GHSA-8w4g-6qwv-67hv"},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-75421","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-75421","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-75421","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2026-75421","tags":["web"]},{"url":"https://bugzilla.suse.com/1257934","tags":["report"]},{"url":"https://bugzilla.suse.com/1276754","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-75421","description":"aria2 \u003c=1.37.0 has a stack-buffer-underflow vulnerability in the IOFile::getLine() function.","status":"published","published":"2026-08-25T00:00:00Z","modified":"2026-08-31T15:16:13.94Z","cvss":[{"version":"3.1","score":4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"adp"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T14:20:07.260654Z"}],"euvd":[{"id":"EUVD-2026-66178","description":"aria2 \u003c=1.37.0 has a stack-buffer-underflow vulnerability in the IOFile::getLine() function.","status":"published","published":"2026-08-25T00:00:00Z","modified":"2026-08-31T15:16:13Z","cvss":[{"version":"3.1","score":4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-02T18:01:21.100116Z"}],"ghsa":[{"id":"GHSA-8w4g-6qwv-67hv","title":"aria2 \u003c=1.37.0 has a stack-buffer-underflow vulnerability in the IOFile::getLine() function.","description":"aria2 \u003c=1.37.0 has a stack-buffer-underflow vulnerability in the IOFile::getLine() function.","status":"published","published":"2026-08-25T21:31:32Z","modified":"2026-08-31T18:31:17Z","cvss":[{"version":"3.1","score":4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T15:11:11.297642Z"}],"nvd":[{"id":"CVE-2026-75421","description":"aria2 \u003c=1.37.0 has a stack-buffer-underflow vulnerability in the IOFile::getLine() function.","status":"published","published":"2026-08-25T21:17:45.83Z","modified":"2026-09-08T19:29:09.68Z","cvss":[{"version":"3.1","score":4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"secondary"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T14:12:41.347728Z"}],"osv":[{"id":"DEBIAN-CVE-2026-75421","description":"aria2 \u003c=1.37.0 has a stack-buffer-underflow vulnerability in the IOFile::getLine() function.","status":"published","published":"2026-08-25T21:17:45.83Z","modified":"2026-10-01T03:03:34.444660616Z","cvss":[{"version":"3.1","score":4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-02T15:46:03.004924Z"},{"id":"UBUNTU-CVE-2026-75421","description":"aria2 \u003c=1.37.0 has a stack-buffer-underflow vulnerability in the IOFile::getLine() function.","status":"published","published":"2026-08-25T21:17:00Z","modified":"2026-10-17T13:01:05.708261018Z","cvss":[{"version":"3.1","score":4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-02T16:57:13.483205Z"},{"id":"openSUSE-SU-2026:11843-1","title":"aria2-1.37.0-3.1 on GA media","description":"These are all security issues fixed in the aria2-1.37.0-3.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2026-09-22T00:00:00Z","modified":"2026-09-23T09:15:06.699892634Z","updated_at":"2026-11-02T16:58:39.516824Z"},{"id":"openSUSE-SU-2026:21997-1","title":"Security update for aria2","description":"This update for aria2 fixes the following issues:\n\nChanges in aria2:\n\n- CVE-2026-75421: stack buffer underflow in IOFile::getLine() when\n  a line begins with a NUL byte (boo#1276754)\n\n- Fix build with Nettle 4.0 [be1caa2d] (bsc#1257934)\n","status":"published","published":"2026-09-28T13:48:30Z","modified":"2026-10-01T18:23:10.958159008Z","updated_at":"2026-11-02T16:58:42.426393Z"}]}}