{"id":"CVE-2016-3954","aliases":["GHSA-jr83-vr4j-mp6p","PYSEC-2026-1062"],"url":"https://o3.security/vulnerability/CVE-2016-3954","summary":"web2py exposure of sensitive information","details":"web2py before 2.14.2 allows remote attackers to obtain the session_cookie_key value via a direct request to examples/simple_examples/status.  NOTE: this issue can be leveraged by remote attackers to execute arbitrary code using CVE-2016-3957.","published":"2018-02-06T18:29:00.337Z","modified":"2026-10-24T10:30:40.572650458Z","cvss":{"score":5.5,"severity":"MEDIUM","vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"},"epss":{"score":0.01385,"percentile":0.69608,"asOf":"2026-08-09"},"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"PyPI","name":"web2py","fixedVersion":"2.14.2"}],"fix":{"url":"https://github.com/web2py/web2py/commit/0820926b500a321060ef6a76ce89fd35a252f8b0","label":"web2py/web2py@0820926"},"references":[{"type":"WEB","url":"https://usn.ubuntu.com/4030-1/"},{"type":"EVIDENCE","url":"https://devco.re/blog/2017/01/03/web2py-unserialize-code-execution-CVE-2016-3957/"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2016-3954"},{"type":"WEB","url":"https://github.com/web2py/web2py/commit/0820926b500a321060ef6a76ce89fd35a252f8b0"},{"type":"WEB","url":"https://devco.re/blog/2017/01/03/web2py-unserialize-code-execution-CVE-2016-3957"},{"type":"PACKAGE","url":"https://github.com/web2py/web2py"},{"type":"WEB","url":"https://usn.ubuntu.com/4030-1"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-24T10:30:40.572650458Z"}}