CVE-2026-3531: bojanz openid_connect_\/_oauth_client
CVSS: 6.5v3.1MediumAnalyzed
Published 26-03-2026Last modified 30-03-2026
Vulnerability summary
CVE-2026-3531 is a medium (CVSS 6.5) vulnerability in bojanz openid_connect_\/_oauth_client. EPSS estimates a 0.42% chance of exploitation in the next 30 days, higher than 35.1% of scored vulnerabilities.
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)EPSS score
0.42%
0%100%
Low · +0.18 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 26-03-2026PublishedVulnerability first disclosed.
- 30-03-2026Last modifiedVulnerability information updated.
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.
CVSS metrics
2 scores · 2 sources · 1 versionMedium 6.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NSourcesAll 2 agree
- NVDNIST6.5MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS trend
Probability
0.42%
Chance of exploitation in the next 30 days
Percentile
35%
Versus all other CVEs
30-day change
+0.18 pp
From 0.25% on 19-09-2026
19-09-202619-10-2026
EPSS score0.42%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Bojanz1 product
- openid_connect_\/_oauth_client< 8.x-1.5
Drupal1 product
- openid connect / oauth client≥ 0.0.0, < 1.5.0
2 vendors · 2 products
References
1 links- www.drupal.org/sa-contrib-2026-026Vendor Advisory