{"action":"Upgrade ecdsa to 0.19.2 or later.","affected":[{"fixed":"0.19.2","introduced":"0"}],"component":"ecdsa","cve_ids":["CVE-2026-33936"],"ecosystem":"PyPI","epss":0.00485,"exploited":false,"fixed_versions":["0.19.2"],"ghsa_id":"GHSA-9f5j-8jwj-x28g","id":"tcs_01M5KFANP3QFQ5J8R4207580H6","modified_at":"2026-09-10T03:51:00.142533331Z","published_at":"2026-03-27T15:56:01Z","references":["https://osv.dev/vulnerability/GHSA-9f5j-8jwj-x28g","https://github.com/tlsfuzzer/python-ecdsa/security/advisories/GHSA-9f5j-8jwj-x28g","https://nvd.nist.gov/vuln/detail/CVE-2026-33936","https://github.com/tlsfuzzer/python-ecdsa/commit/bd66899550d7185939bf27b75713a2ac9325a9d3","https://github.com/tlsfuzzer/python-ecdsa","https://github.com/tlsfuzzer/python-ecdsa/releases/tag/python-ecdsa-0.19.2"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"GHSA-9f5j-8jwj-x28g","url":"https://osv.dev/vulnerability/GHSA-9f5j-8jwj-x28g"}],"summary":"python-ecdsa: Denial of Service via improper DER length validation in crafted private keys"}