CVE-2026-3531

CVE-2026-3531 is a medium-severity vulnerability in Bojanz Openid Connect / Oauth Client with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-288.

Key facts

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.

Frequently asked questions

What is CVE-2026-3531?
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.
How severe is CVE-2026-3531?
CVE-2026-3531 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-3531 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-3531?
CVE-2026-3531 affects Bojanz Openid Connect / Oauth Client. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-3531?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-3531 have an EU (EUVD) identifier?
Yes. CVE-2026-3531 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-16387.
When was CVE-2026-3531 published?
CVE-2026-3531 was published on 2026-03-26 and last updated on 2026-06-17.

References

Affected products (1)

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