{"action":"Upgrade bokeh to 3.8.2 or later.","affected":[{"fixed":"3.8.2","introduced":"0"}],"component":"bokeh","cve_ids":["CVE-2026-21883"],"ecosystem":"PyPI","epss":0.00176,"exploited":false,"fixed_versions":["3.8.2"],"ghsa_id":"GHSA-793v-589g-574v","id":"tcs_01M5KF5F0YD1GWVSBY92TPSCZ5","modified_at":"2026-09-10T03:50:32.759807855Z","published_at":"2026-01-06T17:53:44Z","references":["https://osv.dev/vulnerability/GHSA-793v-589g-574v","https://github.com/bokeh/bokeh/security/advisories/GHSA-793v-589g-574v","https://nvd.nist.gov/vuln/detail/CVE-2026-21883","https://github.com/bokeh/bokeh/commit/cedd113b0e271b439dce768671685cf5f861812e","https://aydinnyunus.github.io/2026/01/24/bokeh-websocket-hijacking-cve-2026-21883","https://github.com/bokeh/bokeh"],"severity":{"label":"medium","score":5.4},"sources":[{"source":"osv","source_id":"GHSA-793v-589g-574v","url":"https://osv.dev/vulnerability/GHSA-793v-589g-574v"},{"source":"nvd","source_id":"CVE-2026-21883","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-21883"}],"summary":"Bokeh server applications have Incomplete Origin Validation in WebSockets"}