CVE-2025-8995
Authenticator Login - Highly critical - Access bypass - SA-CONTRIB-2025-096
Authentication Bypass Using an Alternate Path or Channel vulnerability in Drupal Authenticator Login allows Authentication Bypass.This issue affects Authenticator Login: from 0.0.0 before 2.1.4.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Authenticator Login - Highly critical - Access bypass - SA-CONTRIB-2025-096
Authentication Bypass Using an Alternate Path or Channel vulnerability in Drupal Authenticator Login allows Authentication Bypass.This issue affects Authenticator Login: from 0.0.0 before 2.1.4.
- Record
CVE-2025-8995- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-288
- Updated
- 2026-11-02
EUVDEUVD-2025-25044
Authentication Bypass Using an Alternate Path or Channel vulnerability in Drupal Authenticator Login allows Authentication Bypass.This issue affects Authenticator Login: from 0.0.0 before 2.1.4.
- Record
EUVD-2025-25044- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-x4hh-vfx4-455p
Authentication Bypass Using an Alternate Path or Channel vulnerability in Drupal Authenticator...
Authentication Bypass Using an Alternate Path or Channel vulnerability in Drupal Authenticator Login allows Authentication Bypass.This issue affects Authenticator Login: from 0.0.0 before 2.1.4.
- Record
GHSA-x4hh-vfx4-455p- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-288, CWE-306
- Updated
- 2026-11-02
NVD
Authentication Bypass Using an Alternate Path or Channel vulnerability in Drupal Authenticator Login allows Authentication Bypass.This issue affects Authenticator Login: from 0.0.0 before 2.1.4.
- Record
CVE-2025-8995- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-288, CWE-306
- Updated
- 2026-11-02
OSV
Authenticator Login - Highly critical - Access bypass - SA-CONTRIB-2025-096
Authentication Bypass Using an Alternate Path or Channel vulnerability in Drupal Authenticator Login allows Authentication Bypass.This issue affects Authenticator Login: from 0.0.0 before 2.1.4.
- Record
CVE-2025-8995- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-288
- Updated
- 2026-11-02
OSVDRUPAL-CONTRIB-2025-096 No score
This module enables users to setup two-factor authentication (2FA) using authenticator apps for enhanced login security. The module alters the standard Drupal login form to use AJAX callbacks for handling authentication flow.
The module doesn't sufficiently validate authentication under specific conditions, allowing an attacker to log in as any account where they know the username.
This vulnerability is mitigated by the fact that an attacker must make a series of requests to trigger the necessary conditions that allow authentication byass. The series of requests could alert a site owner that they are being attacked; however, the number of requests necessary to trigger the conditions is usually quite small (the number depends on site configuration, by default it is 5).
- Record
DRUPAL-CONTRIB-2025-096- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
drupal/aloginPackagist:https://packages.drupal.org/8 |
before 2.1.5 | 2.1.5 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-8995 is a critical vulnerability (CVSS 9.8) in Authenticator Login Project Login, published August 13, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.58%, the 48th percentile. Fixed in drupal/alogin 2.1.5.