{"action":"Upgrade apostrophe to 4.29.0 or later.","affected":[{"fixed":"4.29.0","introduced":"0"}],"component":"apostrophe","cve_ids":["CVE-2026-39857"],"ecosystem":"npm","epss":0.00381,"exploited":false,"fixed_versions":["4.29.0"],"ghsa_id":"GHSA-c276-fj82-f2pq","id":"tcs_01M5KFHCZ3C32RGTYSHAPRRXR6","modified_at":"2026-04-16T21:11:29.918279Z","published_at":"2026-04-16T20:45:15Z","references":["https://osv.dev/vulnerability/GHSA-c276-fj82-f2pq","https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-c276-fj82-f2pq","https://nvd.nist.gov/vuln/detail/CVE-2026-39857","https://github.com/apostrophecms/apostrophe/commit/6c2b548dec2e3f7a82e8e16736603f4cd17525aa","https://github.com/apostrophecms/apostrophe"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"GHSA-c276-fj82-f2pq","url":"https://osv.dev/vulnerability/GHSA-c276-fj82-f2pq"}],"summary":"ApostropheCMS: Information Disclosure via choices/counts Query Parameters Bypassing publicApiProjection Field Restrictions"}