{"id":"CVE-2026-9733","aliases":["EUVD-2026-38421","GHSA-rq65-66g5-5pg2"],"status":"published","title":"Mojolicious::Plugin::Web::Auth::OAuth2 versions through 0.17 for Perl have an insecure default state parameter","description":"Mojolicious::Plugin::Web::Auth::OAuth2 versions through 0.17 for Perl have an insecure default state parameter.\n\nWhen no state generator is specified in the constructor, the module defaults to using a SHA-1 hash of predictable and low-entropy sources, including the epoch time (which is leaked via the HTTP Date header) and a call to Perl's built-in rand function.\n\nA predictable state allows an attacker to hijack another user's session through cross site request forgery (CSRF).","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":"adp","from":"cve"},"epss":{"day":"2026-11-09","score":0.00522,"percentile":0.446,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-338","CWE-340"],"published":"2026-06-23T07:05:20Z","modified":"2026-10-28T02:31:12Z","products":[{"vendor":"hayajo","product":"mojolicious::plugin::web::auth::oauth2"}],"references":[{"url":"https://metacpan.org/release/HAYAJO/Mojolicious-Plugin-Web-Auth-0.17/source/lib/Mojolicious/Plugin/Web/Auth/OAuth2.pm#L129-131","tags":["web"]},{"url":"https://datatracker.ietf.org/doc/html/rfc6749#section-10.12","tags":["technical-description","article"]},{"url":"https://security.metacpan.org/patches/M/Mojolicious-Plugin-Web-Auth/0.17/CVE-2026-9733-r2.patch","tags":["patch","fix"]},{"url":"http://www.openwall.com/lists/oss-security/2026/06/23/1","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-9733","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-rq65-66g5-5pg2"},{"url":"https://cpan.org/modules","tags":["web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/9xxx/CVE-2026-9733.json","tags":["advisory"]},{"url":"https://github.com/hayajo/Mojolicious-Plugin-Web-Auth","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-9733","title":"Mojolicious::Plugin::Web::Auth::OAuth2 versions through 0.17 for Perl have an insecure default state parameter","description":"Mojolicious::Plugin::Web::Auth::OAuth2 versions through 0.17 for Perl have an insecure default state parameter.\n\nWhen no state generator is specified in the constructor, the module defaults to using a SHA-1 hash of predictable and low-entropy sources, including the epoch time (which is leaked via the HTTP Date header) and a call to Perl's built-in rand function.\n\nA predictable state allows an attacker to hijack another user's session through cross site request forgery (CSRF).","status":"published","published":"2026-06-23T07:05:20.564Z","modified":"2026-06-23T14:18:05.692Z","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":"adp"}],"cwes":["CWE-340","CWE-338"],"updated_at":"2026-11-02T13:42:37.965383Z"}],"euvd":[{"id":"EUVD-2026-38421","description":"Mojolicious::Plugin::Web::Auth::OAuth2 versions through 0.17 for Perl have an insecure default state parameter.\n\nWhen no state generator is specified in the constructor, the module defaults to using a SHA-1 hash of predictable and low-entropy sources, including the epoch time (which is leaked via the HTTP Date header) and a call to Perl's built-in rand function.\n\nA predictable state allows an attacker to hijack another user's session through cross site request forgery (CSRF).","status":"published","published":"2026-06-23T07:05:20Z","modified":"2026-06-23T14:18:05Z","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":"2026-11-02T18:20:33.324654Z"}],"ghsa":[{"id":"GHSA-rq65-66g5-5pg2","title":"Mojolicious::Plugin::Web::Auth::OAuth2 versions through 0.17 for Perl have an insecure default...","description":"Mojolicious::Plugin::Web::Auth::OAuth2 versions through 0.17 for Perl have an insecure default state parameter.\n\nWhen no state generator is specified in the constructor, the module defaults to using a SHA-1 hash of predictable and low-entropy sources, including the epoch time (which is leaked via the HTTP Date header) and a call to Perl's built-in rand function.\n\nA predictable state allows an attacker to hijack another user's session through cross site request forgery (CSRF).","status":"published","published":"2026-06-23T09:32:23Z","modified":"2026-06-23T15:32:36Z","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-338"],"updated_at":"2026-11-02T15:08:56.903887Z"}],"nvd":[{"id":"CVE-2026-9733","description":"Mojolicious::Plugin::Web::Auth::OAuth2 versions through 0.17 for Perl have an insecure default state parameter.\n\nWhen no state generator is specified in the constructor, the module defaults to using a SHA-1 hash of predictable and low-entropy sources, including the epoch time (which is leaked via the HTTP Date header) and a call to Perl's built-in rand function.\n\nA predictable state allows an attacker to hijack another user's session through cross site request forgery (CSRF).","status":"published","published":"2026-06-23T08:16:26.037Z","modified":"2026-10-25T23:10:00.167Z","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-338","CWE-340"],"updated_at":"2026-11-02T14:12:25.288279Z"}],"osv":[{"id":"CVE-2026-9733","title":"Mojolicious::Plugin::Web::Auth::OAuth2 versions through 0.17 for Perl have an insecure default state parameter","description":"Mojolicious::Plugin::Web::Auth::OAuth2 versions through 0.17 for Perl have an insecure default state parameter.\n\nWhen no state generator is specified in the constructor, the module defaults to using a SHA-1 hash of predictable and low-entropy sources, including the epoch time (which is leaked via the HTTP Date header) and a call to Perl's built-in rand function.\n\nA predictable state allows an attacker to hijack another user's session through cross site request forgery (CSRF).","status":"published","published":"2026-06-23T07:05:20.564Z","modified":"2026-10-28T02:31:12.47251628Z","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-338","CWE-340"],"updated_at":"2026-11-02T15:45:21.262447Z"}]}}