{"items":[{"id":"NVI-00007808","kind":"vulnerability","title":"yii2-authclient vulnerable to possible timing attack on string comparison in OAuth1, OAuth2 and OpenID Connect implementation","revision":2,"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-w8vh-p74j-x9xp","CVE-2023-50708"],"plain_summary":"OSV carries this publisher advisory for yiisoft/yii2-authclient. 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 2.2.15 for yiisoft/yii2-authclient. Confirm the publisher’s latest guidance.","source_ids":["sr-e952beb4866a13d7613b6fd5215c6887"],"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-14512c79daf9caee9fd398d4730f9389"],"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":"2026-06-17T06:39:49.530Z","value":"6.1 MEDIUM (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-14512c79daf9caee9fd398d4730f9389"},{"kind":"CVSS","as_of":"2026-06-17T06:39:49.530Z","value":"9.8 CRITICAL (3.1)","meaning":"nvd@nist.gov severity; no combined Null risk score.","source_id":"sr-14512c79daf9caee9fd398d4730f9389"}],"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-e952beb4866a13d7613b6fd5215c6887","url":"https://github.com/advisories/GHSA-w8vh-p74j-x9xp","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-w8vh-p74j-x9xp","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:41.385Z"},{"id":"sr-14512c79daf9caee9fd398d4730f9389","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-50708","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2023-50708","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-02T09:54:03.688Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-e952beb4866a13d7613b6fd5215c6887"],"technology":"yiisoft/yii2-authclient","known_exclusions":[],"conditions_summary":"### Impact\n_What kind of vulnerability is it? Who is impacted?_\n\nOriginal Report:\n\n> The Oauth1/2 \"state\" and OpenID Connect \"nonce\" is vulnerable for a \"timing attack\" since it's compared via regular string \n> comparison (instead of `Yii::$app->getSecurity()->compareString()`).\n\nAffected Code:\n\n1. OAuth 1 \"state\"\n\n    https://github.com/yiisoft/yii2-authclient/blob/0d1c3880f4d79e20aa1d77c012650b54e69695ff/src/OAuth1.php#L158\n\n3. OAuth 2 \"state\"\n    \n    https://github.com/yiisoft/yii2-authclient/blob/0d1c3880f4d79e20aa1d77c012650b54e69695ff/src/OAuth2.php#L121\n\n4. OpenID Connect \"nonce\"\n    \n    https://github.com/yiisoft/yii2-authclient/blob/0d1c3880f4d79e20aa1d77c012650b54e69695ff/src/OpenIdConnect.php#L420\n\n\n### Patches\n_Has the problem been patched? What versions should users upgrade to?_\n\nTBD: Replace strcmp with  `Yii::$app->getSecurity()->compareString()`).\n\n### Workarounds\n_Is there a way for users to fix or remediate the vulnerability without upgrading?_\n\nnot as far as I see.\n\n### References\n_Are there any links users can visit to find out more?_\n","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 2.2.15"]}],"null_published_at":"2026-11-02T10:00:44.507Z","source_updated_at":"2026-09-10T03:50:09.190Z","source_disclosed_at":"2023-12-18T20:01:00.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:42:41.385Z"},{"id":"NVI-00007808","kind":"vulnerability","title":"yii2-authclient vulnerable to possible timing attack on string comparison in OAuth1, OAuth2 and OpenID Connect implementation","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-w8vh-p74j-x9xp","CVE-2023-50708"],"plain_summary":"OSV carries this publisher advisory for yiisoft/yii2-authclient. 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 2.2.15 for yiisoft/yii2-authclient. Confirm the publisher’s latest guidance.","source_ids":["sr-e952beb4866a13d7613b6fd5215c6887"],"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-e952beb4866a13d7613b6fd5215c6887","url":"https://github.com/advisories/GHSA-w8vh-p74j-x9xp","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-w8vh-p74j-x9xp","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:41.385Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-e952beb4866a13d7613b6fd5215c6887"],"technology":"yiisoft/yii2-authclient","known_exclusions":[],"conditions_summary":"### Impact\n_What kind of vulnerability is it? Who is impacted?_\n\nOriginal Report:\n\n> The Oauth1/2 \"state\" and OpenID Connect \"nonce\" is vulnerable for a \"timing attack\" since it's compared via regular string \n> comparison (instead of `Yii::$app->getSecurity()->compareString()`).\n\nAffected Code:\n\n1. OAuth 1 \"state\"\n\n    https://github.com/yiisoft/yii2-authclient/blob/0d1c3880f4d79e20aa1d77c012650b54e69695ff/src/OAuth1.php#L158\n\n3. OAuth 2 \"state\"\n    \n    https://github.com/yiisoft/yii2-authclient/blob/0d1c3880f4d79e20aa1d77c012650b54e69695ff/src/OAuth2.php#L121\n\n4. OpenID Connect \"nonce\"\n    \n    https://github.com/yiisoft/yii2-authclient/blob/0d1c3880f4d79e20aa1d77c012650b54e69695ff/src/OpenIdConnect.php#L420\n\n\n### Patches\n_Has the problem been patched? What versions should users upgrade to?_\n\nTBD: Replace strcmp with  `Yii::$app->getSecurity()->compareString()`).\n\n### Workarounds\n_Is there a way for users to fix or remediate the vulnerability without upgrading?_\n\nnot as far as I see.\n\n### References\n_Are there any links users can visit to find out more?_\n","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 2.2.15"]}],"null_published_at":"2026-10-31T22:13:18.635Z","source_updated_at":"2026-09-10T03:50:09.190Z","source_disclosed_at":"2023-12-18T20:01:00.000Z","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":"2026-10-31T21:42:41.385Z"}],"next_cursor":null,"snapshot_revision":"40769"}