{"id":"CVE-2020-26116","revision":"5c795fefc6344965a1565553b2fef00f","records":[{"revision":"5c795fefc6344965a1565553b2fef00f","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2020-26116","aliases":[],"title":"http.client in Python 3.x before 3.5.10, 3.6.x before 3.6.12, 3.7.x before 3.7.9, and 3.8.x before 3.8.5 allows CRLF injection if the attacker controls the HTTP request method, as demonstrated by inserting CR and LF control characters in th…","description":"http.client in Python 3.x before 3.5.10, 3.6.x before 3.6.12, 3.7.x before 3.7.9, and 3.8.x before 3.8.5 allows CRLF injection if the attacker controls the HTTP request method, as demonstrated by inserting CR and LF control characters in the first argument of HTTPConnection.request.","state":0,"publishedAt":"2020-09-27T00:00:00+00:00","modifiedAt":"2026-10-14T09:35:28.657+00:00","affected":[{"ecosystem":"Vendor product","name":"n/a","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"n/a\",\n                    \"product\": \"n/a\",\n                    \"versions\": [\n                        {\n                            \"version\": \"n/a\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://python-security.readthedocs.io/vuln/http-header-injection-method.html","https://bugs.python.org/issue39603","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BW4GCLQISJCOEGQNIMVUZDQMIY6RR6CC/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JWMAVY4T4257AZHTF2RZJKNJNSJFY24O/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OXI72HIHMXCQFWTULUXDG7VDA2BCYL4Y/","https://usn.ubuntu.com/4581-1/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HDQ2THWU4GPV4Y5H5WW5PFMSWXL2CRFD/","http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00027.html","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QOX7DGMMWWL6POCRYGAUCISOLR2IG3XV/","https://lists.debian.org/debian-lts-announce/2020/11/msg00032.html","https://security.gentoo.org/glsa/202101-18","https://www.oracle.com/security-alerts/cpuoct2021.html","https://security.netapp.com/advisory/ntap-20201023-0001/","https://lists.debian.org/debian-lts-announce/2023/05/msg00024.html"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2020-26116","license":"CVE Program Terms of Use","key":"cve-program:CVE-2020-26116","identifiers":["CVE-2020-26116"]},"retained":false,"historicalAffected":[]}],"coverage":[]}