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.
Metrics
Affected Vendors & Products
References
History
Wed, 28 Oct 2026 20:30:00 +0000
| Type | Values Removed | Values Added |
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| Metrics |
ssvc
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Sat, 17 Oct 2026 18:00:00 +0000
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| First Time appeared |
Python-social-auth
Python-social-auth social-core |
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| Vendors & Products |
Python-social-auth
Python-social-auth social-core |
Fri, 16 Oct 2026 00:30:00 +0000
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| Weaknesses | CWE-358 | |
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| Metrics |
threat_severity
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threat_severity
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Thu, 15 Oct 2026 19:00:00 +0000
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| 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 |
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| Metrics |
cvssV3_1
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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
Updated: 2026-10-28T19:54:30.369Z
Status : Awaiting Analysis
Published: 2026-10-15T19:17:42.213
Modified: 2026-10-28T20:18:28.530
Link: CVE-2026-62322