{"action":"Upgrade decidim-core to 0.30.5 or later.","affected":[{"fixed":"0.31.1","introduced":"0.31.0.rc1"},{"fixed":"0.30.5","introduced":"0.19.0"}],"component":"decidim-core","cve_ids":["CVE-2026-40869"],"ecosystem":"RubyGems","epss":0.00223,"exploited":false,"fixed_versions":["0.31.1","0.30.5"],"ghsa_id":"GHSA-w5xj-99cg-rccm","id":"tcs_01M5KENSZTK879TF6KM650NDW8","modified_at":"2026-05-29T22:00:13.460694346Z","published_at":"2026-04-14T22:22:58Z","references":["https://osv.dev/vulnerability/GHSA-w5xj-99cg-rccm","https://github.com/decidim/decidim/security/advisories/GHSA-w5xj-99cg-rccm","https://nvd.nist.gov/vuln/detail/CVE-2026-40869","https://github.com/decidim/decidim/commit/1b99136a1c7aa02616a0b54a6ab88d12907a57a9","https://github.com/decidim/decidim","https://github.com/rubysec/ruby-advisory-db/blob/master/gems/decidim-core/CVE-2026-40869.yml"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"GHSA-w5xj-99cg-rccm","url":"https://osv.dev/vulnerability/GHSA-w5xj-99cg-rccm"}],"summary":"Decidim amendments can be accepted or rejected by anyone"}