CVE-2026-3531

Name: CVE-2026-3531
Creator: NVD / NIST
Published: 2026-03-26T21:17:09.283+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.25%

Last modified Jun 17, 2026

CVE-2026-3531 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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.. EPSS estimates a 0.25% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

0.25%

15.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-288

Affected Software

Vendor	Product	Versions
Bojanz	Openid Connect \/ Oauth Client	< 8.x-1.5

References

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

Timeline

Published: Mar 26, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-3531?

How severe is CVE-2026-3531?

CVE-2026-3531 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.25% probability of exploitation in the next 30 days.

How do I fix CVE-2026-3531?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-3531?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST