Python Social Auth is a social authentication/registration mechanism. Prior to 5.0.2, the LINE backend exchanges an authorization code without validating the returned OAuth state. An attacker can begin authorization for an attacker-controlled LINE account and induce a victim to visit the resulting callback URL, causing the application to log the victim into the attacker's account. When account linking is enabled, the same missing validation can link the attacker's LINE identity to the victim's existing account and create a persistent unauthorized login path. Only applications with the LINE backend enabled are affected. This issue is fixed in version 5.0.2.
History

Wed, 28 Oct 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Sat, 17 Oct 2026 18:00:00 +0000

Type Values Removed Values Added
First Time appeared Python-social-auth
Python-social-auth social-core
Vendors & Products Python-social-auth
Python-social-auth social-core

Fri, 16 Oct 2026 00:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-358
References
Metrics threat_severity

None

threat_severity

Moderate


Thu, 15 Oct 2026 19:00:00 +0000

Type Values Removed Values Added
Description Python Social Auth is a social authentication/registration mechanism. Prior to 5.0.2, the LINE backend exchanges an authorization code without validating the returned OAuth state. An attacker can begin authorization for an attacker-controlled LINE account and induce a victim to visit the resulting callback URL, causing the application to log the victim into the attacker's account. When account linking is enabled, the same missing validation can link the attacker's LINE identity to the victim's existing account and create a persistent unauthorized login path. Only applications with the LINE backend enabled are affected. This issue is fixed in version 5.0.2.
Title Python Social Auth: Login CSRF in LINE backend (LineOAuth2) — missing OAuth state validation (incomplete fix of 5.0.0 campaign)
Weaknesses CWE-352
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-10-15T18:45:06.452Z

Updated: 2026-10-28T19:54:37.324Z

Reserved: 2026-07-13T19:27:58.314Z

Link: CVE-2026-62322

cve-icon Vulnrichment

Updated: 2026-10-28T19:54:30.369Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-15T19:17:42.213

Modified: 2026-10-28T20:18:28.530

Link: CVE-2026-62322

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-10-15T18:45:06Z

Links: CVE-2026-62322 - Bugzilla