{"id":"CVE-2016-10321","aliases":["EUVD-2022-4011","GHSA-gv85-wgxc-vc56","PYSEC-2026-569","UBUNTU-CVE-2016-10321","USN-4030-1"],"status":"published","title":"web2py is vulnerable to password brute-force attack","description":"web2py before 2.14.6 does not properly check if a host is denied before verifying passwords, allowing a remote attacker to perform brute-force attacks.","severity":{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.02608,"percentile":0.8549,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-254","CWE-307"],"published":"2017-04-10T00:00:00Z","modified":"2026-10-20T10:47:17Z","fixes":[{"ecosystem":"PyPI","package":"web2py","fixed_in":["2.14.6"],"sources":["ghsa","osv"]},{"ecosystem":"Ubuntu:16.04:LTS","package":"web2py","fixed_in":["2.12.3-1ubuntu0.1"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"PyPI","package":"web2py","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.14.6"}]}]},{"source":"osv","ecosystem":"PyPI","package":"web2py","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.14.6"}]}],"versions":["1.96.4","1.98.2","2.1.1"]},{"source":"osv","ecosystem":"PyPI","package":"web2py","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.14.6"}]}],"versions":["1.96.4","1.98.2","2.1.1"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"web2py","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.12.3-1ubuntu0.1"}]}],"versions":["1.99.7-1","2.12.3-1"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"web2py","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.12.3-1ubuntu0.1"}]}],"versions":["1.99.7-1","2.12.3-1"],"bundled":5}],"products":[{"vendor":"web2py","product":"web2py"}],"references":[{"url":"https://github.com/web2py/web2py/issues/1585#issuecomment-284317919","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory","advisory","web"]},{"url":"https://github.com/web2py/web2py/commit/944d8bd8f3c5cf8ae296fc03d149056c65358426","tags":["x_refsource_CONFIRM","x_transferred","Patch","Third Party Advisory","fix","web","report"]},{"url":"https://usn.ubuntu.com/4030-1/","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-10321","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-gv85-wgxc-vc56","tags":["advisory"]},{"url":"https://github.com/web2py/web2py","tags":["package"]},{"url":"https://usn.ubuntu.com/4030-1","tags":["web"]},{"url":"https://pypi.org/project/web2py","tags":["package"]},{"url":"https://ubuntu.com/security/CVE-2016-10321","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-4030-1","tags":["advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2016-10321","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2016-3952","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2016-3953","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2016-3954","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2016-3957","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2016-10321","description":"web2py before 2.14.6 does not properly check if a host is denied before verifying passwords, allowing a remote attacker to perform brute-force attacks.","status":"published","published":"2017-04-10T14:00:00Z","modified":"2024-08-06T03:14:43.056Z","updated_at":"2026-11-02T14:33:31.450804Z"}],"euvd":[{"id":"EUVD-2022-4011","description":"web2py before 2.14.6 does not properly check if a host is denied before verifying passwords, allowing a remote attacker to perform brute-force attacks.","status":"published","published":"2017-04-10T14:00:00Z","modified":"2024-08-06T03:14:43Z","updated_at":"2026-11-03T02:22:24.206227Z"}],"ghsa":[{"id":"GHSA-gv85-wgxc-vc56","title":"web2py is vulnerable to password brute-force attack","description":"web2py before 2.14.6 does not properly check if a host is denied before verifying passwords, allowing a remote attacker to perform brute-force attacks.","status":"published","published":"2022-05-14T00:57:47Z","modified":"2023-08-03T22:44:43Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-307"],"updated_at":"2026-11-02T14:36:59.456342Z"}],"nvd":[{"id":"CVE-2016-10321","description":"web2py before 2.14.6 does not properly check if a host is denied before verifying passwords, allowing a remote attacker to perform brute-force attacks.","status":"published","published":"2017-04-10T14:59:00.217Z","modified":"2026-06-17T00:39:28.727Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-254"],"updated_at":"2026-11-02T14:03:37.238712Z"}],"osv":[{"id":"CVE-2016-10321","description":"web2py before 2.14.6 does not properly check if a host is denied before verifying passwords, allowing a remote attacker to perform brute-force attacks.","status":"published","published":"2017-04-10T14:59:00.217Z","modified":"2026-10-20T10:47:17.812792339Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:44:01.531338Z"},{"id":"GHSA-gv85-wgxc-vc56","title":"web2py is vulnerable to password brute-force attack","description":"web2py before 2.14.6 does not properly check if a host is denied before verifying passwords, allowing a remote attacker to perform brute-force attacks.","status":"published","published":"2022-05-14T00:57:47Z","modified":"2026-06-29T12:26:22.739408853Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-307"],"updated_at":"2026-11-02T15:46:48.191583Z"},{"id":"PYSEC-2026-569","title":"web2py is vulnerable to password brute-force attack","description":"web2py before 2.14.6 does not properly check if a host is denied before verifying passwords, allowing a remote attacker to perform brute-force attacks.","status":"published","published":"2026-06-29T11:50:32.485181Z","modified":"2026-07-01T20:23:11.774432Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:52:57.671918Z"},{"id":"UBUNTU-CVE-2016-10321","description":"web2py before 2.14.6 does not properly check if a host is denied before verifying passwords, allowing a remote attacker to perform brute-force attacks.","status":"published","published":"2017-04-10T00:00:00Z","modified":"2026-02-04T03:04:29.837465Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:54:11.492576Z"},{"id":"USN-4030-1","title":"web2py vulnerabilities","description":"It was discovered that web2py does not properly check denied hosts before \nverifying passwords. An attacker could possibly use this issue to perform\nbrute-force attacks. (CVE-2016-10321)\n\nIt was discovered that web2py allows remote attackers to obtain\nenvironment variable values. An attacker could possibly use this issue to\ngain administrative access. (CVE-2016-3952)\n\nIt was discovered that web2py uses a hardcoded encryption key. An\nattacker could possibly use this issue to execute arbitrary code.\n(CVE-2016-3953, CVE-2016-3954, CVE-2016-3957)\n","status":"published","published":"2019-06-21T18:49:17Z","modified":"2026-02-10T04:41:33Z","updated_at":"2026-11-02T16:58:14.019824Z"}]}}