---
id: "CVE-2026-118554"
kind: "vulnerability"
aliases: ["CVE-2026-118554"]
title: "Drupal OpenID Connect Client: authentication bypass through an alternate login path"
severity: "unknown"
cvss: null
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["drupal", "openid-connect", "package", "self-hosted"]
not_affected_if: ["module-not-installed"]
published_at: "2026-10-30T04:18:20+00:00"
first_seen_at: "2026-10-30T04:28:38+00:00"
updated_at: "2026-10-30T04:29:24+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-118554", "first_seen_at": "2026-10-30T04:28:38+00:00"}]
---

# Drupal OpenID Connect Client: authentication bypass through an alternate login path

The Drupal OpenID Connect Client module contains an authentication bypass that uses an alternate path or channel to skip normal login checks. A remote attacker may be able to access a Drupal site without valid credentials.

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

## How to check

- Check the installed version of the OpenID Connect Client module (`drush pm:list | grep openid`, or the module's info file) and see whether it is `2.3.1` or earlier.
- Check whether the site uses OpenID Connect login at all in the module settings.

## Fix

- Move the OpenID Connect Client module to a version later than `2.3.1`; the exact fixed version is unknown from the sources.

## Timeline

- 2026-10-30T04:28:38+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-118554

## From the sources

Authentication Bypass Using an Alternate Path or Channel vulnerability in Drupal OpenID Connect Client allows Authentication Bypass. This issue affects OpenID Connect Client versions: from 0.0.0 to 2.3.1.

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