CVE-2026-3530 Server-side request forgery in OpenID Connect / OAuth client
Attackers can exploit a Server-Side Request Forgery flaw in the Drupal OpenID Connect module to access internal resources or sensitive data.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-3530?
CVE-2026-3530 is a medium-severity server-side request forgery vulnerability in Drupal OpenID Connect / OAuth client, published on 26 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Server-Side Request Forgery (SSRF) vulnerability in Drupal OpenID Connect / OAuth client allows Server Side Request Forgery.This issue affects OpenID Connect / OAuth client: from 0.0.0 before 1.5.0.
Weakness: CWE-918
Which versions are affected by CVE-2026-3530?
It affects 1 product.
Linux distribution packages (1)
drupal/openid_connect Packagist:https://packages.drupal.org/8 | All versions | 1.5.0 |
Products include Bojanz Openid Connect \/ Oauth Client.
How do I fix CVE-2026-3530?
Upgrade to a fixed version.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-3530 being exploited?
There is no known exploitation of CVE-2026-3530 in the wild and no public exploit code.
Other vulnerabilities in Drupal OpenID Connect / OAuth client
Sources
Also known as DRUPAL-CONTRIB-2026-025, GHSA-2mq5-fr5w-rr29.