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DRUPAL-CONTRIB-2026-287unknown

The module enables authentication via the OpenID Connect (oAuth2) protocol.

Impact

The module enables authentication via the OpenID Connect (oAuth2) protocol.

Source excerpt · OSV
Applies when

This vulnerability is mitigated by the fact that the site must be configured to use a provider that doesn't verify the email address of the user.

Affected packages

Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.

drupal/oidc Packagist:https://packages.drupal.org/8
Affected range Recorded fix
Earlier releases before 2.3.1Ecosystem versions2.3.1

Version evidence: OSV · DRUPAL-CONTRIB-2026-287

View original version evidence (0 explicit versions)

Affected products

Vendor version evidence. Product records are separate from automatic dependency matching.

Drupal · drupal

OpenID Connect Client

1 range
drupal version evidence

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affected

0.0.0 → before 2.3.1

semver versions

unaffected

unknown

Other versions: unknown

Original source description

The module enables authentication via the OpenID Connect (oAuth2) protocol.

When a new user logs in via OpenID Connect, the module tries to link the user to an existing account with the same email address. Doing so it allows to take over any existing Drupal account (except user 1) that has not yet been linked to an OpenID Connect user.

This vulnerability is mitigated by the fact that the site must be configured to use a provider that doesn't verify the email address of the user.

Inside the record

Evidence available

Package identity
Version evidence
Remediation guidance · not supplied
Weakness classification
Additional publishers · not supplied

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2026-118554

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Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-288 ↗

CWE-288 Authentication Bypass Using an Alternate Path or Channel

drupal

Related →
Contributing organizations · 1
drupal

Assigning organization

2026-10-30

What changed

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References

1 sources
www.drupal.org/sa-contrib-2026-287
Security advisorydrupal