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Vulnerabilities

Vulnerability · CVE-2026-62322

Python Social Auth is a social authentication/registration mechanism.

Published Oct 15, 2026 · catalog updated Oct 15, 2026 · Python Social Auth is

Check if you run it

No confirmed exploitation is on record for CVE-2026-62322. EPSS is 0.15%. Act only if a listed version of Python Social Auth is is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Python Social Auth is).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium6.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.15%
Remediation
Advisory link
Affected products
Debian:12 social-auth-core · Debian:13 social-auth-core · Debian:14 social-auth-core · PyPI social-auth-core · pypi social-auth-core · vendor python-social-auth social-core

### Impact Applications using the LINE Login backend are vulnerable to login CSRF / forced authentication. An attacker can start a LINE authorization flow for an account they control and trick a victim into visiting the callback URL with the attacker’s authorization code. Because the LINE backend did not validate the returned OAuth state, the application could accept the forged callback and log the victim in as the attacker-controlled LINE account. If account linking is enabled, the same flaw can allow an attacker to link their LINE identity to a victim’s existing authenticated account, creating a persistent unauthorized login path. ### Patches * https://github.com/python-social-auth/social-core/pull/1829 ### Workarounds Only applications that enable the LINE backend are affected. ### Credits Thanks to Ta Duc Thien and Duc Anh Nguyen for reproting this via GitHub.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • Debian:12 social-auth-core4.3.0-1, 4.4.2-1, 4.4.2-2
  • Debian:13 social-auth-core4.6.1-1, 4.8.1-1, 4.8.3-1
  • Debian:14 social-auth-core0 → 5.0.2-1
  • PyPI social-auth-core0 → 5.0.2
  • pypi social-auth-coreversion unspecified
  • vendor python-social-auth social-coreversion unspecified

How to fix CVE-2026-62322

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-62322. EPSS is 0.15%. Act only if a listed version of Python Social Auth is is installed.

Which versions are affected?

Compare what you have installed with 4.3.0-1, 4.4.2-1, 4.4.2-2, 4.6.1-1, 4.8.1-1, 4.8.3-1, 0 → 5.0.2-1, 0 → 5.0.2. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-352: Cross-Site Request Forgery (CSRF). EPSS 0.15%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Debian security

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 15, 2026 · NIST NVD

    Detected

    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 lin

  2. Oct 15, 2026 · GitHub Advisory Database

    Fix available

    social-auth-core fixed in 5.0.2

  3. Oct 15, 2026 · GitHub Advisory Database

    Fix available

    social-auth-core fixed in 5.0.2

  4. Oct 15, 2026 · GitHub Advisory Database

    Updated

    ### Impact Applications using the LINE Login backend are vulnerable to login CSRF / forced authentication. An attacker can start a LINE authorization flow for an account they control and trick a victim into visiting the callback URL with the attacker’s authorization code. Because the LINE backend did not validate the returned OAuth state, the application could accept the forged callback and log th

  5. Oct 15, 2026 · OpenSSF OSV / OSV Scanner

    Fix available

    social-auth-core fixed in 5.0.2-1

  6. Oct 15, 2026 · OpenSSF OSV / OSV Scanner

    Fix available

    social-auth-core fixed in 5.0.2-1

  7. Oct 15, 2026 · OpenSSF OSV / OSV Scanner

    Updated

    ### Impact Applications using the LINE Login backend are vulnerable to login CSRF / forced authentication. An attacker can start a LINE authorization flow for an account they control and trick a victim into visiting the callback URL with the attacker’s authorization code. Because the LINE backend did not validate the returned OAuth state, the application could accept the forged callback and log th

Sources

  • CVE.orgVulnerability recordCVE-2026-62322

    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 v

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-62322

    30-day exploitation probability 0.2%

    first.org
  • GitHub Advisory DatabasePackage advisoryGHSA-526j-582w-7fm9

    GitHub Advisory Database record mirrored by OSV.

    github.com
  • GitLab Advisory DatabasePackage advisoryCVE-2026-62322

    Applications using the LINE Login backend are vulnerable to login CSRF / forced authentication. An attacker can start a LINE authorization flow for an account they control and trick a victim into visiting the callback URL with the attacker’s authorization code. Because the LINE backend did not validate the returned OAuth state, the application could accept the forged callback and log the victim in

    advisories.gitlab.com
  • NIST NVDVulnerability recordCVE-2026-62322

    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 v

    nvd.nist.gov
  • OpenSSF OSV / OSV ScannerPackage advisoryDEBIAN-CVE-2026-62322
    osv.dev
  • OpenSSF OSV / OSV ScannerPackage advisoryGHSA-526j-582w-7fm9

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

    osv.dev

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.