{"action":"Upgrade mitmproxy to 7.0.3 or later.","affected":[{"fixed":"7.0.3","introduced":"0"}],"component":"mitmproxy","cve_ids":["CVE-2021-39214"],"ecosystem":"PyPI","epss":0.01055,"exploited":false,"fixed_versions":["7.0.3"],"ghsa_id":"GHSA-22gh-3r9q-xf38","id":"tcs_01M5KERFRCW5JWJMJDQ98NVYP7","modified_at":"2026-07-08T06:27:31.868808645Z","published_at":"2021-09-20T19:53:30Z","references":["https://osv.dev/vulnerability/GHSA-22gh-3r9q-xf38","https://github.com/mitmproxy/mitmproxy/security/advisories/GHSA-22gh-3r9q-xf38","https://nvd.nist.gov/vuln/detail/CVE-2021-39214","https://github.com/mitmproxy/mitmproxy","https://github.com/pypa/advisory-database/tree/main/vulns/mitmproxy/PYSEC-2021-328.yaml"],"severity":{"label":"high","score":8.1},"sources":[{"source":"osv","source_id":"GHSA-22gh-3r9q-xf38","url":"https://osv.dev/vulnerability/GHSA-22gh-3r9q-xf38"}],"summary":"Lacking Protection against HTTP Request Smuggling in mitmproxy"}