{"schema":"threatline.record/2","record":{"id":"CVE-2026-57177","aliases":["GHSA-x7qq-23vw-7pfg","PYSEC-2026-4169"],"summary":"social-auth-core has Login CSRF via Missing State Parameter in LoginRadius Backend","details":"### Impact\n\nThe LoginRadius backend did not validate OAuth state during the authentication flow.\n\nApplications using this backend were vulnerable to login CSRF. An attacker could cause a victim's browser session to complete authentication using an attacker-controlled LoginRadius token, making the victim authenticated as the attacker's LoginRadius identity.\n\nThe issue affects only applications using the LoginRadius backend.\n\n### Patches\n\nThe issue has been fixed by enabling callback state validation for the LoginRadius backend.\n\nUsers should upgrade to a patched version.\n\nFix:\n\n* https://github.com/python-social-auth/social-core/pull/1808\n\n### Workarounds\n\nApplications that cannot upgrade immediately should disable the LoginRadius backend by removing it from `SOCIAL_AUTH_AUTHENTICATION_BACKENDS`.\n\nThere is no complete workaround while continuing to use the vulnerable backend.\n\n### Credits\n\nReported through GitHub private vulnerability reporting by Liyi Zhou, Ziyue Wang, Strick, Maurice, and Chenchen Yu from the University of Sydney security research team.\n\nReporter references:\n\n* https://lzhou1110.github.io/\n* https://zyy0530.github.io/\n* https://str1ckl4nd.github.io/\n* https://maurice.busystar.org/\n* https://7thparkk.github.io/","categories":["Runtimes & languages"],"product":"social-auth-core","vendor":"python-social-auth","ecosystem":"pip","affected_ranges":[{"source":"GitHub Advisory Database","source_url":"https://github.com/advisories/GHSA-x7qq-23vw-7pfg","source_modified_at":"2026-09-24T19:56:39Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"pip","name":"social-auth-core"},"range":"< 5.0.0"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-57177","source_modified_at":"2026-10-05T15:33:08.902Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"social-core","vendor":"python-social-auth","versions":[{"status":"affected","version":"< 5.0.0"}],"defaultStatus":null},{"source":"OSV","source_url":"https://osv.dev/vulnerability/GHSA-x7qq-23vw-7pfg","source_modified_at":"2026-10-01T17:55:50.809969571Z","fetched_at":"2026-10-23T18:48:36.087640Z","package":{"name":"social-auth-core","ecosystem":"PyPI","purl":"pkg:pypi/social-auth-core"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.0.0"}]}],"versions":["0.0.1","0.1.0","0.2.0","0.2.1","1.0.0","1.0.1","1.1.0","1.2.0","1.3.0","1.4.0","1.5.0","1.6.0","1.7.0","2.0.0","3.0.0","3.1.0","3.2.0","3.3.0","3.3.1","3.3.2","3.3.3","3.4.0","4.0.2","4.0.3","4.1.0","4.2.0","4.3.0","4.4.0","4.4.1","4.4.2","4.5.0","4.5.1","4.5.2","4.5.3","4.5.4","4.5.5","4.5.6","4.6.0","4.6.1","4.7.0","4.8.0","4.8.1","4.8.2","4.8.3","4.8.4","4.8.5","4.8.6","4.8.7","4.9.0","4.9.1"]}],"fixed_versions":[{"source":"GitHub Advisory Database","source_url":"https://github.com/advisories/GHSA-x7qq-23vw-7pfg","source_modified_at":"2026-09-24T19:56:39Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"pip","name":"social-auth-core"},"version":"5.0.0"},{"source":"OSV","source_url":"https://osv.dev/vulnerability/GHSA-x7qq-23vw-7pfg","source_modified_at":"2026-10-01T17:55:50.809969571Z","fetched_at":"2026-10-23T18:48:36.087640Z","package":{"name":"social-auth-core","ecosystem":"PyPI","purl":"pkg:pypi/social-auth-core"},"version":"5.0.0"}],"cvss":4.3,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00108,"percentile":0.01153,"score_date":"2026-10-23"},"published_at":"2026-09-24T17:24:11.391Z","modified_at":"2026-10-05T15:33:08.902Z","provenance":[{"source":"GitHub Advisory Database","url":"https://github.com/advisories/GHSA-x7qq-23vw-7pfg","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-09-24T19:56:39Z"},{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-57177","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-05T15:33:08.902Z"},{"source":"OSV","url":"https://osv.dev/vulnerability/GHSA-x7qq-23vw-7pfg","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-01T17:55:50.809969571Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-57177","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["GitHub Advisory Database","CVE List","OSV","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/python-social-auth/social-core/security/advisories/GHSA-x7qq-23vw-7pfg","tags":["x_refsource_CONFIRM"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-57177","source":"GitHub Advisory Database"},{"url":"https://github.com/python-social-auth/social-core/pull/1808","source":"GitHub Advisory Database"},{"url":"https://github.com/python-social-auth/social-core/commit/4d332820e6b0583fde522956105a0e2beced5335","source":"GitHub Advisory Database"},{"url":"https://github.com/python-social-auth/social-core/releases/tag/5.0.0","source":"GitHub Advisory Database"},{"url":"https://github.com/advisories/GHSA-x7qq-23vw-7pfg","source":"GitHub Advisory Database"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-05T14:47:05.660534Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"vendor and product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-05T15:33:08.902Z","content_hash":"ec7e796726c4189776c8d887c5d7ed710b081150cefb42bc21e44941cb59a668"}}