CVE-2026-45330: Decidim missing authorization in identity-document verification admin controllers

CVE-2026-45330 · Severity: medium · CVSS 4.9 · Published 2026-07-31

Decidim, a participatory democracy framework, contains a security flaw in its identity verification system. In multi-tenant environments, an administrator from one organization can view, approve, or reject identity document requests belonging to a different organization. This could lead to the unauthorized exposure of sensitive personal identification documents and compromise the integrity of the verification process across different groups using the same platform.

Technologies: Decidim, decidim-verifications (RubyGems). Vendors: Decidim, RubyGems.

Quick answers

Is CVE-2026-45330 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-45330 being exploited in the wild.
How severe is CVE-2026-45330?
Medium severity, with a CVSS score of 4.9, published 31 July 2026.
Which products and versions are affected?
Decidim < 0.30.9, >= 0.31.0 < 0.31.5, 0.32.0.rc1; decidim-verifications (RubyGems) ECOSYSTEM:introduced=0,fixed=0.30.9.
Is there a fix for CVE-2026-45330?
Yes. decidim-verifications (RubyGems): upgrade to 0.30.9 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-45330 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-45330?
Check whether you run Decidim or decidim-verifications (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-verifications (RubyGems): upgrade to 0.30.9 or later
    bundle update decidim-verifications

Technical details

A broken access control vulnerability exists in Decidim's identity-document verification admin controllers. The software loads pending Authorization records using raw identifiers without verifying that the record belongs to the 'current_organization' of the logged-in administrator. This allows a high-privileged user (administrator) from one tenant to perform Insecure Direct Object Reference (IDOR) attacks to view, approve, or reject ID-document requests from other tenants. The issue is rooted in missing authorization checks (CWE-862) and authorization bypass through user-controlled keys (CWE-639). Patches are available in versions 0.30.9, 0.31.5, and 0.32.0.rc2.

Affected products

  • Decidim Decidim < 0.30.9, >= 0.31.0 < 0.31.5, 0.32.0.rc1

Identifiers

  • CVE-2026-45330
  • GHSA-86fh-w43w-338c

Timeline

  • 2026-05-12: patched: Versions 0.30.9 and 0.31.5 released with fixes
  • 2026-07-31: advisory: CVE-2026-45330 published

References

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