{"id":"BIT-libpython-2026-0865","summary":"wsgiref.headers.Headers allows header newline injection","details":"User-controlled header names and values containing newlines can allow injecting HTTP headers.","aliases":["BIT-python-2026-0865","BIT-python-min-2026-0865","CVE-2026-0865","PSF-2026-6"],"modified":"2026-03-07T04:33:35.524276Z","published":"2026-01-26T14:43:33.890Z","database_specific":{"severity":"Medium","cpes":["cpe:2.3:a:python:python:*:*:*:*:*:*:*:*"]},"references":[{"type":"WEB","url":"https://github.com/python/cpython/commit/22e4d55285cee52bc4dbe061324e5f30bd4dee58"},{"type":"WEB","url":"https://github.com/python/cpython/commit/23e3c0ae867cca0130e441e776c9955b9027c510"},{"type":"WEB","url":"https://github.com/python/cpython/commit/2f840249550e082dc351743f474ba56da10478d2"},{"type":"WEB","url":"https://github.com/python/cpython/commit/4802b96a2cde58570c24c13ef3289490980961c5"},{"type":"WEB","url":"https://github.com/python/cpython/commit/e4846a93ac07a8ae9aa18203af0dd13d6e7a6995"},{"type":"WEB","url":"https://github.com/python/cpython/commit/f7fceed79ca1bceae8dbe5ba5bc8928564da7211"},{"type":"WEB","url":"https://github.com/python/cpython/issues/143916"},{"type":"WEB","url":"https://github.com/python/cpython/pull/143917"},{"type":"WEB","url":"https://mail.python.org/archives/list/security-announce@python.org/thread/BJ6QPHNSHJTS3A7CFV6IBMCAP2DWRVNT/"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-0865"},{"type":"WEB","url":"https://github.com/python/cpython/commit/66da7bf6fe7b81e3ecc9c0a25bd47d4616c8d1a6"},{"type":"WEB","url":"https://github.com/python/cpython/commit/83ecd18779f286d872f68bfce175651e407d9fff"},{"type":"WEB","url":"https://github.com/python/cpython/commit/bfba660085767f8c2d582134e9d511a85eda04cf"},{"type":"WEB","url":"https://github.com/python/cpython/commit/286e3ac39984fe85a17f4ab39c64d382137aae5f"},{"type":"WEB","url":"https://github.com/python/cpython/commit/8bb044d29310bb05d15086cdaa8bf64867d61a97"},{"type":"WEB","url":"https://github.com/python/cpython/commit/c592227ffb48679af9845a45dbb0875d975bb219"}],"affected":[{"package":{"name":"libpython","ecosystem":"Bitnami","purl":"pkg:bitnami/libpython"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"3.13.12"},{"introduced":"3.14.0"},{"fixed":"3.14.3"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/libpython/BIT-libpython-2026-0865.json"},"severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"}]}],"schema_version":"1.7.3"}