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Vulnerability record · CVE-2023-47634 · published 29 February 2024

CVE-2023-47634: Decidim race condition vulnerability

Decidim · Decidim

Decidim is a participatory democracy framework. Starting in version 0.10.0 and prior to versions 0.26.9, 0.27.5, and 0.28.0, a race condition in the endorsement of resources (for instance, a proposal) allows a user to make more than once endorsement. To exploit this vulnerability, the request to set an endorsement must be sent several times in parallel. Versions 0.26.9, 0.27.5, and 0.28.0 contain a patch for this issue. As a workaround, disable the Endorsement feature in the components.

3.1 CVSS 3.1 Low EPSS 0.44% · top 63.3% CWE-362 · Race condition
3.1CVSS 3.1 base score
0.44%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References
17 Jun 2026Last modified by NVD

Description

Decidim is a participatory democracy framework. Starting in version 0.10.0 and prior to versions 0.26.9, 0.27.5, and 0.28.0, a race condition in the endorsement of resources (for instance, a proposal) allows a user to make more than once endorsement. To exploit this vulnerability, the request to set an endorsement must be sent several times in parallel. Versions 0.26.9, 0.27.5, and 0.28.0 contain a patch for this issue. As a workaround, disable the Endorsement feature in the components.

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/decidim/decidim/releases/tag/v0.26.9 Release Notes
https://github.com/decidim/decidim/releases/tag/v0.27.5 Release Notes
https://github.com/decidim/decidim/releases/tag/v0.28.0 Release Notes
https://github.com/decidim/decidim/security/advisories/GHSA-r275-j57c-7mf2 Vendor Advisory
https://github.com/decidim/decidim/releases/tag/v0.26.9 Release Notes
https://github.com/decidim/decidim/releases/tag/v0.27.5 Release Notes
https://github.com/decidim/decidim/releases/tag/v0.28.0 Release Notes
https://github.com/decidim/decidim/security/advisories/GHSA-r275-j57c-7mf2 Vendor Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2023-47634), CISA KEV, FIRST EPSS (scores of 2026-10-09). This page is refreshed as NVD updates the record.