{"id":"CVE-2023-47634","aliases":["GHSA-r275-j57c-7mf2"],"url":"https://o3.security/vulnerability/CVE-2023-47634","summary":"Decidim has race condition in Endorsements","details":"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. ","published":"2024-02-20T16:37:51.966Z","modified":"2026-08-12T03:51:24.156804771Z","cvss":{"score":3.1,"severity":"LOW","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N"},"epss":{"score":0.00444,"percentile":0.37879,"asOf":"2026-09-17"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"RubyGems","name":"decidim","fixedVersion":"0.26.9"},{"ecosystem":"RubyGems","name":"decidim","fixedVersion":"0.27.5"}],"fix":{"url":"https://github.com/decidim/decidim/commit/5c5ee7a50d75c10643dd8c495e2517641e4d74db","label":"decidim/decidim@5c5ee7a"},"references":[{"type":"WEB","url":"https://github.com/decidim/decidim/releases/tag/v0.26.9"},{"type":"WEB","url":"https://github.com/decidim/decidim/releases/tag/v0.27.5"},{"type":"WEB","url":"https://github.com/decidim/decidim/releases/tag/v0.28.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/47xxx/CVE-2023-47634.json"},{"type":"ADVISORY","url":"https://github.com/decidim/decidim/security/advisories/GHSA-r275-j57c-7mf2"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-47634"},{"type":"WEB","url":"https://github.com/decidim/decidim/commit/5c5ee7a50d75c10643dd8c495e2517641e4d74db"},{"type":"WEB","url":"https://github.com/decidim/decidim/commit/7b840d2c37a562709f4481db644d8c43add28536"},{"type":"PACKAGE","url":"https://github.com/decidim/decidim"},{"type":"WEB","url":"https://github.com/rubysec/ruby-advisory-db/blob/master/gems/decidim/CVE-2023-47634.yml"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:24.156804771Z"}}