{"action":"Upgrade mitmproxy to 12.1.2 or later.","affected":[{"fixed":"12.1.2","introduced":"0"}],"component":"mitmproxy","cve_ids":[],"ecosystem":"PyPI","exploited":false,"fixed_versions":["12.1.2"],"ghsa_id":"GHSA-63cx-g855-hvv4","id":"tcs_01M5KF2886SRN5G438H8H41CSC","modified_at":"2026-09-10T03:50:26.707538775Z","published_at":"2025-08-25T21:01:00Z","references":["https://osv.dev/vulnerability/GHSA-63cx-g855-hvv4","https://github.com/mitmproxy/mitmproxy/security/advisories/GHSA-63cx-g855-hvv4","https://github.com/python-hyper/h2/security/advisories/GHSA-847f-9342-265h","https://github.com/mitmproxy/mitmproxy"],"severity":{"label":"medium"},"sources":[{"source":"osv","source_id":"GHSA-63cx-g855-hvv4","url":"https://osv.dev/vulnerability/GHSA-63cx-g855-hvv4"}],"summary":"mitmproxy binaries embed a vulnerable python-hyper/h2 dependency"}