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Fencer Vulns
medium 6.5

CVE-2026-62322 json

Python Social Auth: Login CSRF in LINE backend (LineOAuth2) — missing OAuth state validation (incomplete fix of 5.0.0 campaign)

published 2026-10-15 24 d ago modified 2026-10-28 11 d ago also GHSA-526j-582w-7fm9 , EUVD-2026-102323

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 4%
public exploits
0
none known

Summary

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.

Patch / fix

  • pypi social-auth-core 5.0.2
  • social-auth-core Debian 14 5.0.2-1

debian advisories DEBIAN-CVE-2026-62322

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-62322 updated cvss 6.5

social-auth-core: social-auth-core: unauthorized account access via missing OAuth state validation in LINE backend

  • Red Hat Ansible Automation Platform 2 automation-controller 4.7.18-1.el9ap, python-social-auth-core 4.4.2-1.el9ap, python3x-social-auth-core 4.4.2-1.el8ap, ansible-automation-platform-26/hub-rhel9, ansible-automation-platform-27/hub-rhel9, python3.11-social-auth-core 4.5.4-1.el9ap, +10 more
    affected: workaround, no fix available, no fix planned “Out of support scope”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
11 d ago

Exploit prediction

0.15% chance of exploitation in the next 30 days, higher than 4% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
GitHub 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Affected packages

ecosystem package affected fixed in
pypi social-auth-core
<5.0.2
5.0.2

Affected products

  • python-social-auth social-core

Classification

Weakness
  • CWE-352 Cross-Site Request Forgery

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.