CVE-2025-61783 Details
Description
Python Social Auth is a social authentication/registration mechanism. In versions prior to 5.6.0, upon authentication, the user could be associated by e-mail even if the `associate_by_email` pipeline was not included. This could lead to account compromise when a third-party authentication service does not validate provided e-mail addresses or doesn't require unique e-mail addresses. Version 5.6.0 contains a patch. As a workaround, review the authentication service policy on e-mail addresses; many will not allow exploiting this vulnerability.
A vulnerability exists in Python Social Auth's social authentication mechanism, specifically in versions prior to 5.6.0. The issue arises when a user is authenticated via a third-party service that does not validate or require unique email addresses. In such cases, the user can be associated with an existing account by email, even if the 'associate_by_email' pipeline is not enabled. This flaw can lead to unauthorized access to accounts, including those of administrators. The vulnerability is linked to a threading fix that inadvertently allowed this association to occur without proper verification.
Users can update to Python Social Auth version 5.6.0 or later, where this vulnerability has been patched. Additionally, review the email association policies of the social authentication services in use.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 9, 2025CISA-ADP
Assessed Oct 15, 2025References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-303 | Incorrect Implementation of Authentication Algorithm | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| python-social-auth/social-app-django | All versions |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Oct 15, 2025 | CVE Modified | CISA-ADP |
| Oct 9, 2025 | New CVE Received | [email protected] |