{"items":[{"id":"NVI-00012982","kind":"vulnerability","title":"social-auth-core: VK App backend accepts unsigned callback data when auth_key is missing","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-3c93-f73f-qc9h","CVE-2026-57178"],"plain_summary":"GitHub lists this reviewed advisory for social-auth-core. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-17f088205ce8af5fcec6a2c8bfff2d9f"],"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":"2026-09-24T19:57:25.000Z","value":"7.4 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-2cd62ce8f744fda1e3b3c8b9887be684"},{"kind":"CVSS","as_of":"2026-09-28T18:17:23.873Z","value":"7.4 HIGH (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-4f2c41d9a285390dffe895eeaeb86c51"},{"kind":"EPSS","as_of":"2026-11-01T12:00:16.000Z","value":"0.160%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.05187. Missing scores are unknown.","source_id":"sr-17f088205ce8af5fcec6a2c8bfff2d9f"}],"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-2cd62ce8f744fda1e3b3c8b9887be684","url":"https://github.com/advisories/GHSA-3c93-f73f-qc9h","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-3c93-f73f-qc9h","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T07:24:52.155Z"},{"id":"sr-4f2c41d9a285390dffe895eeaeb86c51","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-57178","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-57178","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-03T22:35:57.723Z"},{"id":"sr-17f088205ce8af5fcec6a2c8bfff2d9f","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-2026-57178","publisher":"FIRST EPSS","observed_at":"2026-11-01T14:28:32.283Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-2cd62ce8f744fda1e3b3c8b9887be684"],"technology":"social-auth-core","known_exclusions":[],"conditions_summary":"### Impact\n\nThe `vk-app` backend accepted VK application callback data without verifying the callback signature when the `auth_key` parameter was omitted.\n\nApplications using this backend could treat unsigned attacker-controlled data as a verified VK identity. An attacker could choose callback fields such as `viewer_id`, `access_token`, `api_id`, and `api_result`, potentially allowing authentication as an arbitrary VK user ID.\n\nThe issue affects only applications using the `vk-app` backend.\n\n### Patches\n\nThe issue has been fixed by requiring `auth_key` to be present and valid before callback data is trusted.\n\nUsers should upgrade to a patched version.\n\nFix:\n\n* https://github.com/python-social-auth/social-core/pull/1811\n\n### Workarounds\n\nApplications that cannot upgrade immediately should disable the `vk-app` backend by removing `social_core.backends.vk.VKAppOAuth2` from `SOCIAL_AUTH_AUTHENTICATION_BACKENDS`.\n\nThere is no complete workaround while continuing to use the vulnerable backend.\n\n### Credits\n\nReported by @lalalala5678 through GitHub private vulnerability reporting.","public_affected_ranges":["< 5.0.0"]}],"null_published_at":"2026-11-05T19:10:23.260Z","source_updated_at":"2026-09-24T19:57:25.000Z","source_disclosed_at":"2026-09-24T19:57:22.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-11-01T07:24:52.155Z"},{"id":"NVI-00012982","kind":"vulnerability","title":"social-auth-core: VK App backend accepts unsigned callback data when auth_key is missing","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-3c93-f73f-qc9h","CVE-2026-57178"],"plain_summary":"GitHub lists this reviewed advisory for social-auth-core. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-17f088205ce8af5fcec6a2c8bfff2d9f"],"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":"2026-09-24T19:57:25.000Z","value":"7.4 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-2cd62ce8f744fda1e3b3c8b9887be684"},{"kind":"EPSS","as_of":"2026-11-01T12:00:16.000Z","value":"0.160%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.05187. Missing scores are unknown.","source_id":"sr-17f088205ce8af5fcec6a2c8bfff2d9f"}],"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-2cd62ce8f744fda1e3b3c8b9887be684","url":"https://github.com/advisories/GHSA-3c93-f73f-qc9h","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-3c93-f73f-qc9h","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T07:24:52.155Z"},{"id":"sr-17f088205ce8af5fcec6a2c8bfff2d9f","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-2026-57178","publisher":"FIRST EPSS","observed_at":"2026-11-01T14:28:32.283Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-2cd62ce8f744fda1e3b3c8b9887be684"],"technology":"social-auth-core","known_exclusions":[],"conditions_summary":"### Impact\n\nThe `vk-app` backend accepted VK application callback data without verifying the callback signature when the `auth_key` parameter was omitted.\n\nApplications using this backend could treat unsigned attacker-controlled data as a verified VK identity. An attacker could choose callback fields such as `viewer_id`, `access_token`, `api_id`, and `api_result`, potentially allowing authentication as an arbitrary VK user ID.\n\nThe issue affects only applications using the `vk-app` backend.\n\n### Patches\n\nThe issue has been fixed by requiring `auth_key` to be present and valid before callback data is trusted.\n\nUsers should upgrade to a patched version.\n\nFix:\n\n* https://github.com/python-social-auth/social-core/pull/1811\n\n### Workarounds\n\nApplications that cannot upgrade immediately should disable the `vk-app` backend by removing `social_core.backends.vk.VKAppOAuth2` from `SOCIAL_AUTH_AUTHENTICATION_BACKENDS`.\n\nThere is no complete workaround while continuing to use the vulnerable backend.\n\n### Credits\n\nReported by @lalalala5678 through GitHub private vulnerability reporting.","public_affected_ranges":["< 5.0.0"]}],"null_published_at":"2026-11-03T17:49:18.506Z","source_updated_at":"2026-09-24T19:57:25.000Z","source_disclosed_at":"2026-09-24T19:57:22.000Z","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":"2026-11-01T07:24:52.155Z"},{"id":"NVI-00012982","kind":"vulnerability","title":"social-auth-core: VK App backend accepts unsigned callback data when auth_key is missing","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-3c93-f73f-qc9h","CVE-2026-57178"],"plain_summary":"GitHub lists this reviewed advisory for social-auth-core. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-2cd62ce8f744fda1e3b3c8b9887be684"],"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":"2026-09-24T19:57:25.000Z","value":"7.4 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-2cd62ce8f744fda1e3b3c8b9887be684"}],"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-2cd62ce8f744fda1e3b3c8b9887be684","url":"https://github.com/advisories/GHSA-3c93-f73f-qc9h","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-3c93-f73f-qc9h","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T07:24:52.155Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-2cd62ce8f744fda1e3b3c8b9887be684"],"technology":"social-auth-core","known_exclusions":[],"conditions_summary":"### Impact\n\nThe `vk-app` backend accepted VK application callback data without verifying the callback signature when the `auth_key` parameter was omitted.\n\nApplications using this backend could treat unsigned attacker-controlled data as a verified VK identity. An attacker could choose callback fields such as `viewer_id`, `access_token`, `api_id`, and `api_result`, potentially allowing authentication as an arbitrary VK user ID.\n\nThe issue affects only applications using the `vk-app` backend.\n\n### Patches\n\nThe issue has been fixed by requiring `auth_key` to be present and valid before callback data is trusted.\n\nUsers should upgrade to a patched version.\n\nFix:\n\n* https://github.com/python-social-auth/social-core/pull/1811\n\n### Workarounds\n\nApplications that cannot upgrade immediately should disable the `vk-app` backend by removing `social_core.backends.vk.VKAppOAuth2` from `SOCIAL_AUTH_AUTHENTICATION_BACKENDS`.\n\nThere is no complete workaround while continuing to use the vulnerable backend.\n\n### Credits\n\nReported by @lalalala5678 through GitHub private vulnerability reporting.","public_affected_ranges":["< 5.0.0"]}],"null_published_at":"2026-11-01T07:29:12.906Z","source_updated_at":"2026-09-24T19:57:25.000Z","source_disclosed_at":"2026-09-24T19:57:22.000Z","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":"2026-11-01T07:24:52.155Z"}],"next_cursor":null,"snapshot_revision":"42594"}