CVE-2026-87947
MEDIUMCVSS 4.8/10EPSS 0.10%
Last modified
CVE-2026-87947 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. Improper Verification of Cryptographic Signature vulnerability in Drupal SAML SSO - Service Provider allows Signature Spoof. This issue affects SAML SSO - Service Provider versions: from 0.0.0 to 3.2.0.. EPSS estimates a 0.10% chance of exploitation in the next 30 days.
Description
Improper Verification of Cryptographic Signature vulnerability in Drupal SAML SSO - Service Provider allows Signature Spoof. This issue affects SAML SSO - Service Provider versions: from 0.0.0 to 3.2.0.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Drupal | SAML SSO - Service Provider | >= 0.0.0, < 3.2.0 |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Frequently Asked Questions
What is CVE-2026-87947?
Improper Verification of Cryptographic Signature vulnerability in Drupal SAML SSO - Service Provider allows Signature Spoof. This issue affects SAML SSO - Service Provider versions: from 0.0.0 to 3.2.0.
How severe is CVE-2026-87947?
CVE-2026-87947 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 0.10% probability of exploitation in the next 30 days.
How do I fix CVE-2026-87947?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- Same Subject, Wrong User: A Cross-Issuer Account Takeover in n8nStrix found an identity-binding bug in n8n's token-exchange flow enabling account takeover.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-87941Vulnerability in Drupal Patreon. This issue affects Patreon …5.9
- CVE-2026-87942Improper Neutralization of Input During Web Page Generation …4.6
- CVE-2026-87943Missing Authorization vulnerability in Drupal SAML SSO - Ser…6.5
- CVE-2026-87944Improper Certificate Validation vulnerability in Drupal SAML…4.8
- CVE-2026-87945URL Redirection to Untrusted Site ('Open Redirect') vulnerab…5.4
- CVE-2026-87946Observable Timing Discrepancy vulnerability in Drupal SAML S…4.8
- CVE-2026-87948Improper Neutralization of Input During Web Page Generation …3.5
- CVE-2026-87949Improper Neutralization of Input During Web Page Generation …3.3
- CVE-2026-8795A YAML injection vulnerability exists in the Windows.Collect…7.8
- CVE-2026-87950Use of Hard-coded Credentials vulnerability in Drupal SAML S…5.3
- CVE-2026-87951Insecure Storage of Sensitive Information vulnerability in D…3.8
- CVE-2026-87952Authentication Bypass by Capture-replay vulnerability in Dru…3.1
Are you affected by CVE-2026-87947?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST