{"action":"Upgrade mitmproxy to 12.2.2 or later.","affected":[{"fixed":"12.2.2","introduced":"0"}],"component":"mitmproxy","cve_ids":["CVE-2026-40606"],"ecosystem":"PyPI","epss":0.00166,"exploited":false,"fixed_versions":["12.2.2"],"ghsa_id":"GHSA-527g-3w9m-29hv","id":"tcs_01M5KHECHFZ387TR2T5CNM8Q5A","modified_at":"2026-05-20T09:19:08.113032Z","published_at":"2026-04-21T18:16:52.127Z","references":["https://osv.dev/vulnerability/PYSEC-2026-92","https://github.com/mitmproxy/mitmproxy/security/advisories/GHSA-527g-3w9m-29hv"],"severity":{"label":"medium","score":4.8},"sources":[{"source":"osv","source_id":"PYSEC-2026-92","url":"https://osv.dev/vulnerability/PYSEC-2026-92"}],"summary":"mitmproxy is a interactive TLS-capable intercepting HTTP proxy for penetration testers and software developers and mitmweb is a web-based interface for mitmproxy. In mitmproxy 12.2.1 and below, the bu"}