Auth bypass in Allauth
CVE-2025-65431
An issue was discovered in allauth-django before 65.13.0. Both Okta and NetIQ were using preferred_username as the identifier for third-party provider accounts. That value may be mutable and should therefore be avoided for authorization decisions. The providers are now using sub instead.
Vulnerability class: Broken Authentication
EPSS: 0.001 (4.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.
Affected products
- Allauth
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Release Notes)
Frequently asked questions
- What is CVE-2025-65431?
- CVE-2025-65431 is a medium-severity vulnerability in Allauth, classified under Improper Authentication. CVSS score: 5.4/10. Published 2025-12-15.
- How severe is CVE-2025-65431?
- Medium severity. CVSS v3 base score is 5.4 out of 10.