{"cve":"CVE-2026-57177","nvd":{"published":"2026-09-24T18:17:14.823","modified":"2026-10-05T16:17:14.560","status":"Awaiting Analysis","description":"Python Social Auth is a social authentication/registration mechanism. Prior to version 5.0.0, the LoginRadius backend did not validate OAuth state during the authentication flow. Applications 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. The issue affects only applications using the LoginRadius backend. The issue has been fixe in version 5.0.0 by enabling callback state validation for the LoginRadius backend.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","score":4.3},"cwes":["CWE-352"],"references":["https://github.com/python-social-auth/social-core/security/advisories/GHSA-x7qq-23vw-7pfg"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:56:02.509636177+00:00"},"epss":{"cve":"CVE-2026-57177","score":0.00108,"percentile":0.01201,"date":"2026-10-26"},"kev":null,"osv":[{"id":"GHSA-x7qq-23vw-7pfg","url":"https://osv.dev/vulnerability/GHSA-x7qq-23vw-7pfg","summary":"social-auth-core has Login CSRF via Missing State Parameter in LoginRadius Backend","modified":"2026-10-01T17:55:50.809969571Z","packages":[{"ecosystem":"PyPI","name":"social-auth-core","purl":"pkg:pypi/social-auth-core","ranges":["<5.0.0"],"fixed":["5.0.0"]}]},{"id":"PYSEC-2026-4169","url":"https://osv.dev/vulnerability/PYSEC-2026-4169","summary":"social-auth-core has Login CSRF via Missing State Parameter in LoginRadius Backend","modified":"2026-10-01T17:45:15.985653180Z","packages":[{"ecosystem":"PyPI","name":"social-auth-core","purl":"pkg:pypi/social-auth-core","ranges":["<5.0.0"],"fixed":["5.0.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}