CVE-2026-23891
Ruby vulnerability analysis and mitigation

Decidim is a participatory democracy framework. In versions below 0.30.5 and 0.31.0.rc1 through 0.31.0, a stored code execution vulnerability in the user name field allows a low-privileged attacker to execute arbitrary code in the context of any user who passively visits a comment page, resulting in high confidentiality and integrity impact across security boundaries. This issue has been fixed in versions 0.30.5 and 0.31.1.


SourceNVD

Related Ruby vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

GHSA-2x79-gwq3-vxxmHIGH8.7
  • RubyRuby
  • iodine
NoNoApr 14, 2026
GHSA-ghmh-q25g-gxxxHIGH7.5
  • RubyRuby
  • decidim-api
NoYesApr 14, 2026
CVE-2026-40870HIGH7.5
  • RubyRuby
  • decidim-api
NoYesApr 14, 2026
GHSA-w5xj-99cg-rccmHIGH7.5
  • RubyRuby
  • decidim-core
NoYesApr 14, 2026
CVE-2026-40869HIGH7.5
  • RubyRuby
  • decidim-core
NoYesApr 14, 2026

Free Vulnerability Assessment

Benchmark your Cloud Security Posture

Evaluate your cloud security practices across 9 security domains to benchmark your risk level and identify gaps in your defenses.

Request assessment

Get a personalized demo

Ready to see Wiz in action?

"Best User Experience I have ever seen, provides full visibility to cloud workloads."
David EstlickCISO
"Wiz provides a single pane of glass to see what is going on in our cloud environments."
Adam FletcherChief Security Officer
"We know that if Wiz identifies something as critical, it actually is."
Greg PoniatowskiHead of Threat and Vulnerability Management