{"action":"Upgrade mdex to 0.12.3 or later.","affected":[{"fixed":"0.12.3","introduced":"0.11.0"}],"component":"mdex","cve_ids":["CVE-2026-53428"],"ecosystem":"Hex","epss":0.00185,"exploited":false,"fixed_versions":["0.12.3"],"ghsa_id":"GHSA-j93q-9cvj-rxfm","id":"tcs_01M5N859473JMV440BN02X3XYP","modified_at":"2026-09-08T03:45:06.382757656Z","published_at":"2026-06-29T18:52:36.199Z","references":["https://osv.dev/vulnerability/EEF-CVE-2026-53428","https://github.com/leandrocp/mdex_native/security/advisories/GHSA-j93q-9cvj-rxfm","https://cna.erlef.org/cves/CVE-2026-53428.html","https://github.com/leandrocp/mdex_native/commit/798a363b4339f6f7162ec8437c4c9f9b5ae6fbf3","https://hex.pm/packages/mdex","https://hex.pm/packages/mdex_native"],"severity":{"label":"medium","score":6.9},"sources":[{"source":"osv","source_id":"EEF-CVE-2026-53428","url":"https://osv.dev/vulnerability/EEF-CVE-2026-53428"},{"source":"nvd","source_id":"CVE-2026-53428","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53428"}],"summary":"Unbounded memory allocation in highlight_lines range expansion in mdex"}