PatchTheCVECVE-2026-3211: Cross-Site Request Forgery (CSRF) vulnerability in Drupal Theme Negotiation by Rules allows Cross Site Request
CVE-2026-3211 is a medium-severity flaw (CVSS 4.3) affecting theme negotiation by rules. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Cross-Site Request Forgery (CSRF) vulnerability in Drupal Theme Negotiation by Rules allows Cross Site Request Forgery.This issue affects Theme Negotiation by Rules: from 0.0.0 before 1.2.1.
Why this priority
- No elevated risk signals yet
A fixed release or distro patch exists.
Risk facts
| CVSS score | 4.3 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | Required |
| EPSS exploit chance | 0.1% (top 99%) |
| CISA exploited list | No |
| Weakness | CWE-352 |
| Published | 2026-03-25 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-3211?
theme negotiation by rules: upgrade to 1.2.1. Exact commands for each OS are on this page.
Is CVE-2026-3211 being exploited?
CVE-2026-3211 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-3211 affect?
CVE-2026-3211 affects theme negotiation by rules. Severity is medium (CVSS 4.3). Cross-Site Request Forgery (CSRF) vulnerability in Drupal Theme Negotiation by Rules allows Cross Site Request Forgery.This issue affects Theme Negotiation by Rules: from 0.0.0 before 1.2.1.
How urgent is CVE-2026-3211?
Priority 15/100. No elevated risk signals yet.