# CVE-2026-62322: Python Social Auth login CSRF in LINE backend

Source: https://junglewise.ai/threats/cve-2026-62322-python-social-auth-login-csrf-in-line-backend-lineoauth2-missing  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-15. Updated: 2026-10-15  
License: CC BY 4.0 with a link back

CVE-2026-62322 · Severity: medium · CVSS 6.5 · Published 2026-10-15

Python Social Auth is a library that enables applications to authenticate users via third-party identity providers like LINE. The LINE backend fails to validate OAuth state parameters, allowing attackers to forge authentication callbacks and log victims into attacker-controlled LINE accounts. If account linking is enabled, attackers can also hijack existing user accounts by linking them to malicious LINE identities.

Technologies: [social-auth-core (PyPI)](https://junglewise.ai/threats/technologies/social-auth-core). Vendors: [PyPI](https://junglewise.ai/threats/vendors/pypi), [Python-Social-Auth](https://junglewise.ai/threats/vendors/python-social-auth).

## Quick answers

**Is CVE-2026-62322 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-62322 being exploited in the wild.

**How severe is CVE-2026-62322?** Medium severity, with a CVSS score of 6.5, published 15 October 2026.

**Which products and versions are affected?** social-auth-core (PyPI) < 5.0.2, ECOSYSTEM:introduced=0,fixed=5.0.2; Python-Social-Auth Social-Auth-Core < 5.0.2.

**Is there a fix for CVE-2026-62322?** Yes. social-auth-core (PyPI): upgrade to 5.0.2 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-62322 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-62322?** Check whether you run social-auth-core (PyPI) or Python-Social-Auth Social-Auth-Core at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- social-auth-core (PyPI): upgrade to 5.0.2 or later

  ```sh
  pip install "social-auth-core>=5.0.2"
  ```


## Technical details

The vulnerability is a Cross-Site Request Forgery (CSRF) in the LineOAuth2 backend caused by missing OAuth state validation. An attacker can initiate a LINE authorization flow with their own account and trick a victim into clicking the callback URL with the attacker's authorization code; without state validation, the application accepts this forged callback. The attack requires user interaction (victim clicking a link) but requires no privileges or authentication from the attacker.

## Affected products

- python-social-auth social-auth-core < 5.0.2

## Identifiers

- CVE-2026-62322
- GHSA-526j-582w-7fm9

## Timeline

- 2026-06-30: disclosed
- 2026-06-30: patched: Version 5.0.2 released
- 2026-10-15: advisory

## References

- [https://api.github.com/users/thientd](https://api.github.com/users/thientd)

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