Vulnerability-Lookup

CVE-2026-3531 (GCVE-0-2026-3531)

Vulnerability from cvelistv5 – Published: 2026-03-26 20:03 – Updated: 2026-03-30 14:54

Title

OpenID Connect / OAuth client - Moderately critical - Access bypass - SA-CONTRIB-2026-026

Summary

Authentication Bypass Using an Alternate Path or Channel vulnerability in Drupal OpenID Connect / OAuth client allows Authentication Bypass.This issue affects OpenID Connect / OAuth client: from 0.0.0 before 1.5.0.

Severity

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-03-30 14:38 UTC

CWE

CWE-288 - Authentication Bypass Using an Alternate Path or Channel

Assigner

drupal mitre root

References

1 reference

URL	Tags
https://www.drupal.org/sa-contrib-2026-026

Impacted products

1 product

Vendor	Product	Version	CPE status
Drupal	OpenID Connect / OAuth client	Affected: 0.0.0 , < 1.5.0 (semver)	guessed

Date Public

2026-03-04 18:02

Credits

Kimberley Massey (kimberleycgm) Kimberley Massey (kimberleycgm) Philip Frilling (pfrilling) Damien McKenna (damienmckenna) Greg Knaddison (greggles) Juraj Nemec (poker10)

Show details on NVD website

JSON

To clipboard

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DRUPAL-CONTRIB-2026-026 (CVE-2026-3531)

Vulnerability from drupal – Published: 2026-03-04 18:02 – Updated: 2026-03-04 18:02 – Source website

Details

This module enables you to use an external OpenID Connect login provider to authenticate and log in users on your site. If a user signs in with a login provider for the first time on the website, a new Drupal user will be created.

A visitor who successfully logs in to their Identity Provider and is denied access to Drupal through custom code or a server error will maintain their session at the Identity Provider, possibly leading to access bypass situations, especially in a shared computing environment.

Credits

Kimberley Massey (kimberleycgm) www.drupal.org/u/kimberleycgm

References

URL

Type

https://www.drupal.org/sa-contrib-2026-026

WEB

JSON

To clipboard

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      },
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        "name": "drupal/openid_connect"
      },
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          "events": [
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          ],
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FKIE_CVE-2026-3531

Vulnerability from fkie_nvd - Published: 2026-03-26 21:17 - Updated: 2026-06-17 10:43

Severity

6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Summary

References

	URL	Tags
	mlhess@drupal.org	https://www.drupal.org/sa-contrib-2026-026	Vendor Advisory

Impacted products

	Vendor	Product	Version
	bojanz	openid_connect_\/_oauth_client	*

JSON

To clipboard

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GHSA-F2X9-PX9Q-JXW2

Vulnerability from github – Published: 2026-03-26 21:31 – Updated: 2026-03-30 15:31

Details

Severity

6.5 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

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{
  "affected": [],
  "aliases": [
    "CVE-2026-3531"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-288"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-03-26T21:17:09Z",
    "severity": "MODERATE"
  },
  "details": "Authentication Bypass Using an Alternate Path or Channel vulnerability in Drupal OpenID Connect / OAuth client allows Authentication Bypass.This issue affects OpenID Connect / OAuth client: from 0.0.0 before 1.5.0.",
  "id": "GHSA-f2x9-px9q-jxw2",
  "modified": "2026-03-30T15:31:51Z",
  "published": "2026-03-26T21:31:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-3531"
    },
    {
      "type": "WEB",
      "url": "https://www.drupal.org/sa-contrib-2026-026"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

WID-SEC-W-2026-0599

Vulnerability from csaf_certbund - Published: 2026-03-04 23:00 - Updated: 2026-03-26 23:00

Summary

Drupal Extensions: Mehrere Schwachstellen

Severity

Mittel

Scope

8 vulnerabilities in this advisory, including CVE-2026-3531.

CVE-2026-3531

Known affected: 1 product

Open the full advisory

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-3531 (GCVE-0-2026-3531)

DRUPAL-CONTRIB-2026-026 (CVE-2026-3531)

FKIE_CVE-2026-3531

GHSA-F2X9-PX9Q-JXW2

WID-SEC-W-2026-0599

Tags

Sightings

Nomenclature

Related by attack behaviour