{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-9733", "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "state": "PUBLISHED", "assignerShortName": "CPANSec", "dateReserved": "2026-05-27T17:25:58.644Z", "datePublished": "2026-06-23T07:05:20.564Z", "dateUpdated": "2026-06-23T07:05:20.564Z"}, "containers": {"cna": {"affected": [{"collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "packageName": "Mojolicious-Plugin-Web-Auth", "product": "Mojolicious::Plugin::Web::Auth::OAuth2", "programFiles": ["lib/Mojolicious/Plugin/Web/Auth/OAuth2.pm"], "programRoutines": [{"name": "Mojolicious::Plugin::Web::Auth::OAuth2::_state_generator"}], "repo": "https://github.com/hayajo/Mojolicious-Plugin-Web-Auth", "vendor": "HAYAJO", "versions": [{"lessThanOrEqual": "0.17", "status": "affected", "version": "0", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "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)."}], "impacts": [{"capecId": "CAPEC-59", "descriptions": [{"lang": "en", "value": "CAPEC-59 Session Credential Falsification through Prediction"}]}, {"capecId": "CAPEC-62", "descriptions": [{"lang": "en", "value": "CAPEC-62 Cross Site Request Forgery"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-340", "description": "CWE-340 Generation of Predictable Numbers or Identifiers", "lang": "en", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-338", "description": "CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "shortName": "CPANSec", "dateUpdated": "2026-06-23T07:05:20.564Z"}, "references": [{"url": "https://metacpan.org/release/HAYAJO/Mojolicious-Plugin-Web-Auth-0.17/source/lib/Mojolicious/Plugin/Web/Auth/OAuth2.pm#L129-131"}, {"tags": ["technical-description"], "url": "https://datatracker.ietf.org/doc/html/rfc6749#section-10.12"}, {"tags": ["patch"], "url": "https://security.metacpan.org/patches/M/Mojolicious-Plugin-Web-Auth/0.17/CVE-2026-9733-r2.patch"}], "source": {"discovery": "UNKNOWN"}, "title": "Mojolicious::Plugin::Web::Auth::OAuth2 versions through 0.17 for Perl have an insecure default state parameter", "workarounds": [{"lang": "en", "value": "Users should specify a state_generator function in the plugin configuration that uses a secure CSPRNG such as Crypt::PRNG or (for Mojolicious 9.46 or later) the Mojo::Util::random_bytes function. For example,\n\n plugin 'Web::Auth',\n module => 'OAuth2',\n ...\n state_generator => sub {\n unpack(\"H*\", Mojo::Util::random_bytes(20))\n };"}], "x_generator": {"engine": "cpansec-cna-tool 0.1"}}}}

{}

{}

{}

{"created": "2026-06-23T09:30:06.793733+00:00", "updated": "2026-06-23T09:30:06.793740+00:00", "vendors": []}