{"schema_version":"2","view":"grouped","data":[{"id":3251,"cve_ids":["CVE-2026-57178"],"payload":{"kind":"advisory","title":"social-auth-core: VK App backend accepts unsigned callback data when auth_key is missing","summary":"Python Social Auth is a social authentication/registration mechanism. Prior to version 5.0.0, the `vk-app` backend accepted VK application callback data without verifying the callback signature when the `auth_key` parameter was omitted. Applications 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. The issue affects only applications using the `vk-app` backend. The issue has been fixed in version 5.0.0 by requiring `auth_key` to be present and valid before callback data is trusted.","evidence":"cve:CVE-2026-57178","products":[{"name":{"value":"social-core","evidence":"/containers/cna/affected/0/product"},"prerequisites":[],"fixed_versions":[],"affected_versions":[]}],"severity":"high","structured":{"id":"CVE-2026-57178","aliases":["CVE-2026-57178"],"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.4,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"HIGH","availabilityImpact":"NONE","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}}],"affected":[{"vendor":"python-social-auth","product":"social-core","versions":[{"status":"affected","version":"< 5.0.0"}]}],"modified":"2026-09-28T17:34:38.454Z","provider":"cve","references":["https://github.com/python-social-auth/social-core/security/advisories/GHSA-3c93-f73f-qc9h"],"provider_metadata":{"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-57178","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"version":"2.0.3","timestamp":"2026-09-28T17:34:29.013431Z"}}}],"providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-28T17:34:38.454Z"}}],"cna":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-09-24T17:25:47.225Z"}}},"related_cves":[{"value":"CVE-2026-57178","evidence":"/cveMetadata/cveId"}],"security_relevant":true,"severity_evidence":"/containers/cna/metrics"},"group_id":"advisory:04602880-23a7-4cf1-8c30-3a22b79c7d64","priority":{"reasons":["publisher_severity"],"severity":"high","linked_cves":[],"fix_available":false,"known_exploited":false,"publisher_severity":"high"},"revision":1,"source_id":"core-cve","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-57178","advisory_id":"04602880-23a7-4cf1-8c30-3a22b79c7d64","event_types":["advisory"],"published_at":"2026-10-24T21:31:55.896639+00:00","technologies":["core-cve","social-core"],"context_update":false,"extraction_method":"structured","source_published_at":"2026-09-24T17:25:47.225+00:00","detail_url":"/advisories/advisory%3A04602880-23a7-4cf1-8c30-3a22b79c7d64","group":{"id":"advisory:04602880-23a7-4cf1-8c30-3a22b79c7d64","revision":1,"primary_event_id":3263,"change":"published","superseded_by":[],"changed":{"id":3263,"cve_ids":["CVE-2026-57178"],"payload":{"kind":"advisory","title":"social-auth-core: VK App backend accepts unsigned callback data when auth_key is missing","summary":"Python Social Auth is a social authentication/registration mechanism. Prior to version 5.0.0, the `vk-app` backend accepted VK application callback data without verifying the callback signature when the `auth_key` parameter was omitted. Applications 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. The issue affects only applications using the `vk-app` backend. The issue has been fixed in version 5.0.0 by requiring `auth_key` to be present and valid before callback data is trusted.","evidence":"cve:CVE-2026-57178","products":[{"name":{"value":"social-core","evidence":"/containers/cna/affected/0/product"},"prerequisites":[],"fixed_versions":[],"affected_versions":[]}],"severity":"high","structured":{"id":"CVE-2026-57178","aliases":["CVE-2026-57178"],"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.4,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"HIGH","availabilityImpact":"NONE","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}}],"affected":[{"vendor":"python-social-auth","product":"social-core","versions":[{"status":"affected","version":"< 5.0.0"}]}],"modified":"2026-09-28T17:34:38.454Z","provider":"cve","references":["https://github.com/python-social-auth/social-core/security/advisories/GHSA-3c93-f73f-qc9h"],"provider_metadata":{"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-57178","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"version":"2.0.3","timestamp":"2026-09-28T17:34:29.013431Z"}}}],"providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-28T17:34:38.454Z"}}],"cna":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-09-24T17:25:47.225Z"}}},"related_cves":[{"value":"CVE-2026-57178","evidence":"/cveMetadata/cveId"}],"security_relevant":true,"severity_evidence":"/containers/cna/metrics"},"group_id":"advisory:04602880-23a7-4cf1-8c30-3a22b79c7d64","priority":{"reasons":["publisher_severity"],"severity":"high","linked_cves":[],"fix_available":false,"known_exploited":false,"publisher_severity":"high"},"revision":1,"source_id":"core-cve","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-57178","advisory_id":"04602880-23a7-4cf1-8c30-3a22b79c7d64","event_types":["advisory"],"published_at":"2026-10-24T21:31:55.896639+00:00","technologies":["core-cve","social-core"],"context_update":false,"extraction_method":"structured","source_published_at":"2026-09-24T17:25:47.225+00:00","detail_url":"/events/3263"},"members":[{"id":3263,"cve_ids":["CVE-2026-57178"],"payload":{"kind":"advisory","title":"social-auth-core: VK App backend accepts unsigned callback data when auth_key is missing","summary":"Python Social Auth is a social authentication/registration mechanism. Prior to version 5.0.0, the `vk-app` backend accepted VK application callback data without verifying the callback signature when the `auth_key` parameter was omitted. Applications 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. The issue affects only applications using the `vk-app` backend. The issue has been fixed in version 5.0.0 by requiring `auth_key` to be present and valid before callback data is trusted.","evidence":"cve:CVE-2026-57178","products":[{"name":{"value":"social-core","evidence":"/containers/cna/affected/0/product"},"prerequisites":[],"fixed_versions":[],"affected_versions":[]}],"severity":"high","structured":{"id":"CVE-2026-57178","aliases":["CVE-2026-57178"],"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.4,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"HIGH","availabilityImpact":"NONE","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}}],"affected":[{"vendor":"python-social-auth","product":"social-core","versions":[{"status":"affected","version":"< 5.0.0"}]}],"modified":"2026-09-28T17:34:38.454Z","provider":"cve","references":["https://github.com/python-social-auth/social-core/security/advisories/GHSA-3c93-f73f-qc9h"],"provider_metadata":{"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-57178","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"version":"2.0.3","timestamp":"2026-09-28T17:34:29.013431Z"}}}],"providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-28T17:34:38.454Z"}}],"cna":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-09-24T17:25:47.225Z"}}},"related_cves":[{"value":"CVE-2026-57178","evidence":"/cveMetadata/cveId"}],"security_relevant":true,"severity_evidence":"/containers/cna/metrics"},"group_id":"advisory:04602880-23a7-4cf1-8c30-3a22b79c7d64","priority":{"reasons":["publisher_severity"],"severity":"high","linked_cves":[],"fix_available":false,"known_exploited":false,"publisher_severity":"high"},"revision":1,"source_id":"core-cve","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-57178","advisory_id":"04602880-23a7-4cf1-8c30-3a22b79c7d64","event_types":["advisory"],"published_at":"2026-10-24T21:31:55.896639+00:00","technologies":["core-cve","social-core"],"context_update":false,"extraction_method":"structured","source_published_at":"2026-09-24T17:25:47.225+00:00","detail_url":"/events/3263"}]}}],"next_after":3251,"next_before":3251}