openid connect \/ oauth client vulnerabilities and fixes

Recent CVEs affecting openid connect \/ oauth client, with upgrade or downgrade steps. 3 tracked.

Also searched as: openidconnect\/oauthclient.

openid connect \/ oauth client has 3 tracked vulnerabilities, 0 critical. A fixed release or vendor patch exists for 3. Most recent: 2026-03-26. Highest priority: CVE-2026-3531 (score 27/100).

• CVE-2026-3532 MEDIUM 4.2 UPGRADE Improper Handling of Case Sensitivity vulnerability in Drupal OpenID Connect / OAuth client allows Privilege E
• CVE-2026-3531 MEDIUM 6.5 UPGRADE Authentication Bypass Using an Alternate Path or Channel vulnerability in Drupal OpenID Connect / OAuth client
• CVE-2026-3530 MEDIUM 4.3 UPGRADE Server-Side Request Forgery (SSRF) vulnerability in Drupal OpenID Connect / OAuth client allows Server Side Re

FAQ

How do I fix openid connect \/ oauth client vulnerabilities?

Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.

Is openid connect \/ oauth client being exploited right now?

None of the tracked openid connect \/ oauth client CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.

Which openid connect \/ oauth client CVE should I patch first?

CVE-2026-3531 currently ranks highest (27/100): Authentication Bypass Using an Alternate Path or Channel vulnerability in Drupal OpenID Connect / OAuth client.

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