Vulnerability · Published Jul 31, 2026 · Assigned by GitHub_M

CVE-2026-45330Decidim: Veriﬁcation admins can access supplied IDs from other organisations

Medium 4.9

In plain English

A medium-severity authorization bypass via user-controlled key in decidim from decidim. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)4.9Medium

Exploit odds (30 days)0.5%top 60.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

Decidim is a participatory democracy framework. Prior to 0.30.9, from 0.31.0 before 0.31.5, and in 0.32.0.rc1 before 0.32.0.rc2, the identity-document verification admin controllers load pending Authorization records by raw identifier without confirming current_organization ownership, allowing an administrator from one tenant to view, approve, or reject another tenant’s ID-document request. This issue is fixed in versions 0.30.9, 0.31.5, and 0.32.0.rc2.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
RubyGems	decidim-verifications	0.30.9	GHSA-86fh-w43w-338c
RubyGems	decidim-verifications	0.31.5	GHSA-86fh-w43w-338c
RubyGems	decidim-verifications	0.32.0	GHSA-86fh-w43w-338c

Affected products (as reported)

Vendor	Product	Versions
decidim	decidim	< 0.30.9>= 0.31.0, < 0.31.5>= 0.32.0.rc1, < 0.32.0.rc2

Weakness: CWE-639, CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

References

https://github.com/decidim/decidim/security/advisories/GHSA-86fh-w43w-338c x_refsource_CONFIRM
https://github.com/decidim/decidim/releases/tag/v0.30.9 x_refsource_MISC
https://github.com/decidim/decidim/releases/tag/v0.31.5 x_refsource_MISC
https://github.com/decidim/decidim/releases/tag/v0.32.0.rc2 x_refsource_MISC