CVE-2025-65017: Decidim's private data exports can lead to data leaks

CVE-2025-65017 · Severity: medium · CVSS 4 · Published 2026-02-03

Decidim's private data exports can lead to data leaks

Technologies: decidim (RubyGems), decidim-core (RubyGems). Vendors: RubyGems.

Quick answers

Is CVE-2025-65017 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2025-65017 being exploited in the wild.
How severe is CVE-2025-65017?
Medium severity, with a CVSS score of 4, published 3 February 2026.
Which products and versions are affected?
decidim (RubyGems) ECOSYSTEM:introduced=0.30.0,fixed=0.30.4; decidim-core (RubyGems) ECOSYSTEM:introduced=0.30.0,fixed=0.30.4.
Is there a fix for CVE-2025-65017?
Yes. decidim (RubyGems): upgrade to 0.30.4 or later; decidim-core (RubyGems): upgrade to 0.30.4 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2025-65017?
Check whether you run decidim (RubyGems) or decidim-core (RubyGems) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • decidim (RubyGems): upgrade to 0.30.4 or later
    bundle update decidim
  • decidim-core (RubyGems): upgrade to 0.30.4 or later
    bundle update decidim-core

Affected products

  • decidim (RubyGems) ECOSYSTEM:introduced=0.30.0,fixed=0.30.4
  • decidim-core (RubyGems) ECOSYSTEM:introduced=0.30.0,fixed=0.30.4

Identifiers

  • CVE-2025-65017
  • GHSA-3cx6-j9j4-54mp

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