{"action":"Upgrade esphome to 2025.12.7 or later.","affected":[{"fixed":"2025.12.7","introduced":"2025.9.0"}],"component":"esphome","cve_ids":["CVE-2026-23833"],"ecosystem":"PyPI","epss":0.00301,"exploited":false,"fixed_versions":["2025.12.7"],"ghsa_id":"GHSA-4h3h-63v6-88qx","id":"tcs_01M5KEY7NJD83P2DWRFZAWEZRW","modified_at":"2026-07-07T17:56:35.058004084Z","published_at":"2026-01-21T01:02:49Z","references":["https://osv.dev/vulnerability/GHSA-4h3h-63v6-88qx","https://github.com/esphome/esphome/security/advisories/GHSA-4h3h-63v6-88qx","https://nvd.nist.gov/vuln/detail/CVE-2026-23833","https://github.com/esphome/esphome/pull/13306","https://github.com/esphome/esphome/commit/69d7b6e9210390051318bd8e6410727689de08d6","https://esphome.io/guides/security_best_practices","https://github.com/esphome/esphome"],"severity":{"label":"medium"},"sources":[{"source":"osv","source_id":"GHSA-4h3h-63v6-88qx","url":"https://osv.dev/vulnerability/GHSA-4h3h-63v6-88qx"}],"summary":"ESPHome vulnerable to denial-of-service via out-of-bounds check bypass in the API component"}