{"items":[{"id":"NVI-00005054","kind":"vulnerability","title":"The FIDO2/Webauthn Support for PHP library allows enumeration of valid usernames ","revision":4,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-875x-g8p7-5w27","CVE-2024-39912"],"plain_summary":"OSV carries this publisher advisory for web-auth/webauthn-lib, web-auth/webauthn-framework. This is an aggregated source copy; consult the original publisher and compare update dates.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"The original advisory lists fixed boundaries 4.9.0 for web-auth/webauthn-lib. Confirm the publisher’s latest guidance.","source_ids":["sr-7f008f013a6df40354882a5711215e7a"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 4.9.0 for web-auth/webauthn-framework. Confirm the publisher’s latest guidance.","source_ids":["sr-7f008f013a6df40354882a5711215e7a"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-3c47b236cbb255501668f43ed879a9ad"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-06-17T07:43:00.860Z","value":"5.3 MEDIUM (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-a67fd164d11320ba52ee72f2e384923a"},{"kind":"EPSS","as_of":"2026-11-01T12:00:16.000Z","value":"0.391%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.33221. Missing scores are unknown.","source_id":"sr-3c47b236cbb255501668f43ed879a9ad"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-7f008f013a6df40354882a5711215e7a","url":"https://github.com/advisories/GHSA-875x-g8p7-5w27","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-875x-g8p7-5w27","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:59.958Z"},{"id":"sr-a67fd164d11320ba52ee72f2e384923a","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-39912","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2024-39912","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-01T00:59:28.975Z"},{"id":"sr-3c47b236cbb255501668f43ed879a9ad","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2024-39912","publisher":"FIRST EPSS","observed_at":"2026-11-01T14:28:32.253Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-7f008f013a6df40354882a5711215e7a"],"technology":"web-auth/webauthn-lib","known_exclusions":[],"conditions_summary":"### Summary\n\nThe ProfileBasedRequestOptionsBuilder method returns allowedCredentials without any credentials if no username was found.\n\n### Details\n\nWhen WebAuthn is used as the first or only authentication method, an attacker can enumerate usernames based on the absence of the `allowedCredentials` property in the assertion options response. This allows enumeration of valid or invalid usernames.\n\n#### Proposal how to resolve it:\n \n```\nreturn $this->publicKeyCredentialRequestOptionsFactory->create(\n            $this->profile,\n            count($allowedCredentials) userVerification,\n            $extensions\n);\n\nprivate static function getRandomCredentials(): array\n{\n        $credentialSources = [];\n        for ($i = 0; $i __toString(),\n                rand(0, 6000),\n              ","public_affected_ranges":["ECOSYSTEM: introduced 4.5.0; fixed 4.9.0"]},{"certainty":"source_listed","source_ids":["sr-7f008f013a6df40354882a5711215e7a"],"technology":"web-auth/webauthn-framework","known_exclusions":[],"conditions_summary":"### Summary\n\nThe ProfileBasedRequestOptionsBuilder method returns allowedCredentials without any credentials if no username was found.\n\n### Details\n\nWhen WebAuthn is used as the first or only authentication method, an attacker can enumerate usernames based on the absence of the `allowedCredentials` property in the assertion options response. This allows enumeration of valid or invalid usernames.\n\n#### Proposal how to resolve it:\n \n```\nreturn $this->publicKeyCredentialRequestOptionsFactory->create(\n            $this->profile,\n            count($allowedCredentials) userVerification,\n            $extensions\n);\n\nprivate static function getRandomCredentials(): array\n{\n        $credentialSources = [];\n        for ($i = 0; $i __toString(),\n                rand(0, 6000),\n              ","public_affected_ranges":["ECOSYSTEM: introduced 4.5.0; fixed 4.9.0"]}],"null_published_at":"2026-11-08T19:53:48.763Z","source_updated_at":"2026-09-10T03:50:16.366Z","source_disclosed_at":"2024-07-15T16:37:49.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-10-31T21:41:59.958Z"},{"id":"NVI-00005054","kind":"vulnerability","title":"The FIDO2/Webauthn Support for PHP library allows enumeration of valid usernames ","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-875x-g8p7-5w27","CVE-2024-39912"],"plain_summary":"OSV carries this publisher advisory for web-auth/webauthn-lib, web-auth/webauthn-framework. This is an aggregated source copy; consult the original publisher and compare update dates.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"The original advisory lists fixed boundaries 4.9.0 for web-auth/webauthn-lib. Confirm the publisher’s latest guidance.","source_ids":["sr-7f008f013a6df40354882a5711215e7a"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 4.9.0 for web-auth/webauthn-framework. Confirm the publisher’s latest guidance.","source_ids":["sr-7f008f013a6df40354882a5711215e7a"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-a34bdf7390a6d55be3a9f10c50271c50"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-06-17T07:43:00.860Z","value":"5.3 MEDIUM (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-a67fd164d11320ba52ee72f2e384923a"},{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.391%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.33227. Missing scores are unknown.","source_id":"sr-a34bdf7390a6d55be3a9f10c50271c50"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-7f008f013a6df40354882a5711215e7a","url":"https://github.com/advisories/GHSA-875x-g8p7-5w27","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-875x-g8p7-5w27","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:59.958Z"},{"id":"sr-a67fd164d11320ba52ee72f2e384923a","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-39912","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2024-39912","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-01T00:59:28.975Z"},{"id":"sr-a34bdf7390a6d55be3a9f10c50271c50","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2024-39912","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.368Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-7f008f013a6df40354882a5711215e7a"],"technology":"web-auth/webauthn-lib","known_exclusions":[],"conditions_summary":"### Summary\n\nThe ProfileBasedRequestOptionsBuilder method returns allowedCredentials without any credentials if no username was found.\n\n### Details\n\nWhen WebAuthn is used as the first or only authentication method, an attacker can enumerate usernames based on the absence of the `allowedCredentials` property in the assertion options response. This allows enumeration of valid or invalid usernames.\n\n#### Proposal how to resolve it:\n \n```\nreturn $this->publicKeyCredentialRequestOptionsFactory->create(\n            $this->profile,\n            count($allowedCredentials) userVerification,\n            $extensions\n);\n\nprivate static function getRandomCredentials(): array\n{\n        $credentialSources = [];\n        for ($i = 0; $i __toString(),\n                rand(0, 6000),\n              ","public_affected_ranges":["ECOSYSTEM: introduced 4.5.0; fixed 4.9.0"]},{"certainty":"source_listed","source_ids":["sr-7f008f013a6df40354882a5711215e7a"],"technology":"web-auth/webauthn-framework","known_exclusions":[],"conditions_summary":"### Summary\n\nThe ProfileBasedRequestOptionsBuilder method returns allowedCredentials without any credentials if no username was found.\n\n### Details\n\nWhen WebAuthn is used as the first or only authentication method, an attacker can enumerate usernames based on the absence of the `allowedCredentials` property in the assertion options response. This allows enumeration of valid or invalid usernames.\n\n#### Proposal how to resolve it:\n \n```\nreturn $this->publicKeyCredentialRequestOptionsFactory->create(\n            $this->profile,\n            count($allowedCredentials) userVerification,\n            $extensions\n);\n\nprivate static function getRandomCredentials(): array\n{\n        $credentialSources = [];\n        for ($i = 0; $i __toString(),\n                rand(0, 6000),\n              ","public_affected_ranges":["ECOSYSTEM: introduced 4.5.0; fixed 4.9.0"]}],"null_published_at":"2026-11-06T15:18:17.658Z","source_updated_at":"2026-09-10T03:50:16.366Z","source_disclosed_at":"2024-07-15T16:37:49.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:41:59.958Z"},{"id":"NVI-00005054","kind":"vulnerability","title":"The FIDO2/Webauthn Support for PHP library allows enumeration of valid usernames ","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-875x-g8p7-5w27","CVE-2024-39912"],"plain_summary":"OSV carries this publisher advisory for web-auth/webauthn-lib, web-auth/webauthn-framework. This is an aggregated source copy; consult the original publisher and compare update dates.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"The original advisory lists fixed boundaries 4.9.0 for web-auth/webauthn-lib. Confirm the publisher’s latest guidance.","source_ids":["sr-7f008f013a6df40354882a5711215e7a"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 4.9.0 for web-auth/webauthn-framework. Confirm the publisher’s latest guidance.","source_ids":["sr-7f008f013a6df40354882a5711215e7a"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-a34bdf7390a6d55be3a9f10c50271c50"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.391%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.33227. Missing scores are unknown.","source_id":"sr-a34bdf7390a6d55be3a9f10c50271c50"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-7f008f013a6df40354882a5711215e7a","url":"https://github.com/advisories/GHSA-875x-g8p7-5w27","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-875x-g8p7-5w27","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:59.958Z"},{"id":"sr-a34bdf7390a6d55be3a9f10c50271c50","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2024-39912","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.368Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-7f008f013a6df40354882a5711215e7a"],"technology":"web-auth/webauthn-lib","known_exclusions":[],"conditions_summary":"### Summary\n\nThe ProfileBasedRequestOptionsBuilder method returns allowedCredentials without any credentials if no username was found.\n\n### Details\n\nWhen WebAuthn is used as the first or only authentication method, an attacker can enumerate usernames based on the absence of the `allowedCredentials` property in the assertion options response. This allows enumeration of valid or invalid usernames.\n\n#### Proposal how to resolve it:\n \n```\nreturn $this->publicKeyCredentialRequestOptionsFactory->create(\n            $this->profile,\n            count($allowedCredentials) userVerification,\n            $extensions\n);\n\nprivate static function getRandomCredentials(): array\n{\n        $credentialSources = [];\n        for ($i = 0; $i __toString(),\n                rand(0, 6000),\n              ","public_affected_ranges":["ECOSYSTEM: introduced 4.5.0; fixed 4.9.0"]},{"certainty":"source_listed","source_ids":["sr-7f008f013a6df40354882a5711215e7a"],"technology":"web-auth/webauthn-framework","known_exclusions":[],"conditions_summary":"### Summary\n\nThe ProfileBasedRequestOptionsBuilder method returns allowedCredentials without any credentials if no username was found.\n\n### Details\n\nWhen WebAuthn is used as the first or only authentication method, an attacker can enumerate usernames based on the absence of the `allowedCredentials` property in the assertion options response. This allows enumeration of valid or invalid usernames.\n\n#### Proposal how to resolve it:\n \n```\nreturn $this->publicKeyCredentialRequestOptionsFactory->create(\n            $this->profile,\n            count($allowedCredentials) userVerification,\n            $extensions\n);\n\nprivate static function getRandomCredentials(): array\n{\n        $credentialSources = [];\n        for ($i = 0; $i __toString(),\n                rand(0, 6000),\n              ","public_affected_ranges":["ECOSYSTEM: introduced 4.5.0; fixed 4.9.0"]}],"null_published_at":"2026-11-04T02:53:03.183Z","source_updated_at":"2026-09-10T03:50:16.366Z","source_disclosed_at":"2024-07-15T16:37:49.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-10-31T21:41:59.958Z"},{"id":"NVI-00005054","kind":"vulnerability","title":"The FIDO2/Webauthn Support for PHP library allows enumeration of valid usernames ","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-875x-g8p7-5w27","CVE-2024-39912"],"plain_summary":"OSV carries this publisher advisory for web-auth/webauthn-lib, web-auth/webauthn-framework. This is an aggregated source copy; consult the original publisher and compare update dates.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"The original advisory lists fixed boundaries 4.9.0 for web-auth/webauthn-lib. Confirm the publisher’s latest guidance.","source_ids":["sr-7f008f013a6df40354882a5711215e7a"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 4.9.0 for web-auth/webauthn-framework. Confirm the publisher’s latest guidance.","source_ids":["sr-7f008f013a6df40354882a5711215e7a"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-7f008f013a6df40354882a5711215e7a","url":"https://github.com/advisories/GHSA-875x-g8p7-5w27","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-875x-g8p7-5w27","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:59.958Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-7f008f013a6df40354882a5711215e7a"],"technology":"web-auth/webauthn-lib","known_exclusions":[],"conditions_summary":"### Summary\n\nThe ProfileBasedRequestOptionsBuilder method returns allowedCredentials without any credentials if no username was found.\n\n### Details\n\nWhen WebAuthn is used as the first or only authentication method, an attacker can enumerate usernames based on the absence of the `allowedCredentials` property in the assertion options response. This allows enumeration of valid or invalid usernames.\n\n#### Proposal how to resolve it:\n \n```\nreturn $this->publicKeyCredentialRequestOptionsFactory->create(\n            $this->profile,\n            count($allowedCredentials) userVerification,\n            $extensions\n);\n\nprivate static function getRandomCredentials(): array\n{\n        $credentialSources = [];\n        for ($i = 0; $i __toString(),\n                rand(0, 6000),\n              ","public_affected_ranges":["ECOSYSTEM: introduced 4.5.0; fixed 4.9.0"]},{"certainty":"source_listed","source_ids":["sr-7f008f013a6df40354882a5711215e7a"],"technology":"web-auth/webauthn-framework","known_exclusions":[],"conditions_summary":"### Summary\n\nThe ProfileBasedRequestOptionsBuilder method returns allowedCredentials without any credentials if no username was found.\n\n### Details\n\nWhen WebAuthn is used as the first or only authentication method, an attacker can enumerate usernames based on the absence of the `allowedCredentials` property in the assertion options response. This allows enumeration of valid or invalid usernames.\n\n#### Proposal how to resolve it:\n \n```\nreturn $this->publicKeyCredentialRequestOptionsFactory->create(\n            $this->profile,\n            count($allowedCredentials) userVerification,\n            $extensions\n);\n\nprivate static function getRandomCredentials(): array\n{\n        $credentialSources = [];\n        for ($i = 0; $i __toString(),\n                rand(0, 6000),\n              ","public_affected_ranges":["ECOSYSTEM: introduced 4.5.0; fixed 4.9.0"]}],"null_published_at":"2026-10-31T22:13:01.438Z","source_updated_at":"2026-09-10T03:50:16.366Z","source_disclosed_at":"2024-07-15T16:37:49.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-10-31T21:41:59.958Z"}],"next_cursor":null,"snapshot_revision":"42594"}