---
id: "CVE-2026-118572"
kind: "vulnerability"
aliases: ["CVE-2026-118572"]
title: "Drupal OAuth Login module: authentication bypass via alternate path"
severity: "unknown"
cvss: null
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["drupal", "oauth", "oidc", "package", "sso"]
not_affected_if: ["module-not-installed"]
published_at: "2026-10-30T04:18:23+00:00"
first_seen_at: "2026-10-30T04:28:39+00:00"
updated_at: "2026-10-30T04:29:09+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-118572", "first_seen_at": "2026-10-30T04:28:39+00:00"}]
---

# Drupal OAuth Login module: authentication bypass via alternate path

The Drupal OAuth Login - OAuth OIDC SSO module has an authentication bypass flaw that lets a user log in without going through the intended sign-in path. An attacker who uses the alternate channel can gain access to accounts on affected sites.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed version of the OAuth Login - OAuth OIDC SSO module in the Drupal project (for example with `drush pm:list` or the module list at /admin/modules) and compare it with the affected range.
- Confirm whether the module is enabled on the site.

## Fix

- OAuth Login - OAuth OIDC SSO: versions after `3.1.1` are in the affected range per the source; the fixed version is unknown.

## Timeline

- 2026-10-30T04:28:39+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-118572

## From the sources

Authentication Bypass Using an Alternate Path or Channel vulnerability in Drupal OAuth Login - OAuth OIDC SSO allows Authentication Bypass. This issue affects OAuth Login - OAuth OIDC SSO versions: from 0.0.0 to 3.1.1.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_