CVE-2026-5343: drupal saml sso - service provider
CVSS: 7.4v3.1HighAnalyzed
Published 28-05-2026Last modified 29-05-2026
Vulnerability summary
CVE-2026-5343 is a high (CVSS 7.4) vulnerability in drupal saml sso - service provider. EPSS estimates a 0.34% chance of exploitation in the next 30 days, higher than 26.3% of scored vulnerabilities.
CVSS score
7.4/10
010
High · v3.1 (CVE.org)EPSS score
0.34%
0%100%
Low · +0.08 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 28-05-2026PublishedVulnerability first disclosed.
- 29-05-2026Last modifiedVulnerability information updated.
Description
Improper Check for Unusual or Exceptional Conditions vulnerability in Drupal SAML SSO - Service Provider allows Privilege Escalation. This issue affects SAML SSO - Service Provider: from 0.0.0 before 3.1.4.
CVSS metrics
2 scores · 2 sources · 1 versionHigh 7.4Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:NSourcesAll 2 agree
- NVDNIST7.4HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS trend
Probability
0.34%
Chance of exploitation in the next 30 days
Percentile
26%
Versus all other CVEs
30-day change
+0.08 pp
From 0.26% on 22-09-2026
22-09-202622-10-2026
EPSS score0.34%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Drupal1 product
- saml sso - service provider≥ 0.0.0, < 3.1.4
Miniorange1 product
- saml_sso_-_service_provider≥ 3.0.1, < 3.1.4 | 7.x-1.0 | 7.x-1.1 | 7.x-1.2 | 7.x-1.3 | 7.x-1.4 | 7.x-1.5 | 7.x-1.6 | 7.x-1.7 | 7.x-1.8 | 7.x-1.9 | 7.x-1.91 | 7.x-1.92 | 7.x-1.93 | 7.x-1.94 | 7.x-1.95 | 7.x-1.96 | 7.x-1.97 | 7.x-1.98 | 7.x-1.99 | 7.x-1.991 | 7.x-1.992 | 7.x-1.993 | 7.x-1.994 | 7.x-1.995 | 7.x-2.0 | 7.x-2.1 | 7.x-2.2 | 7.x-2.3 | 7.x-2.4 | 7.x-2.5 | 7.x-2.51 | 7.x-2.52 | 7.x-2.53 | 7.x-2.54 | 7.x-2.55 | 7.x-2.56 | 7.x-2.60 | 7.x-2.61 | 7.x-2.70 | 7.x-2.71 | 7.x-2.72 | 8.x-1.0 | 8.x-1.1 | 8.x-1.2 | 8.x-1.3 | 8.x-1.4 | 8.x-1.5 | 8.x-1.6 | 8.x-1.7 | 8.x-1.8 | 8.x-1.9 | 8.x-1.10 | 8.x-1.11 | 8.x-1.12 | 8.x-1.121 | 8.x-1.122 | 8.x-2.0 | 8.x-2.1 | 8.x-2.11 | 8.x-2.12 | 8.x-2.13 | 8.x-2.14 | 8.x-2.15 | 8.x-2.16 | 8.x-2.17 | 8.x-2.18 | 8.x-2.19 | 8.x-2.20 | 8.x-2.21 | 8.x-2.22 | 8.x-2.23 | 8.x-2.24 | 8.x-2.25 | 8.x-2.26 | 8.x-2.27 | 8.x-2.28
2 vendors · 2 products
References
1 links- www.drupal.org/sa-contrib-2026-031Vendor Advisory