{"id":"BIT-libpython-2025-15282","summary":"Header injection via newlines in data URL mediatype","details":"User-controlled data URLs parsed by urllib.request.DataHandler allow injecting headers through newlines in the data URL mediatype.","aliases":["BIT-python-2025-15282","BIT-python-min-2025-15282","CVE-2025-15282","PSF-2026-2"],"modified":"2026-02-23T13:00:18.450205Z","published":"2026-01-26T14:43:08.856Z","database_specific":{"cpes":["cpe:2.3:a:python:python:*:*:*:*:*:*:*:*"],"severity":"Medium"},"references":[{"type":"WEB","url":"https://github.com/python/cpython/commit/05356b1cc153108aaf27f3b72ce438af4aa218c0"},{"type":"WEB","url":"https://github.com/python/cpython/commit/f25509e78e8be6ea73c811ac2b8c928c28841b9f"},{"type":"WEB","url":"https://github.com/python/cpython/issues/143925"},{"type":"WEB","url":"https://github.com/python/cpython/pull/143926"},{"type":"WEB","url":"https://mail.python.org/archives/list/security-announce@python.org/thread/X66HL7SISGJT33J53OHXMZT4DFLMHVKF/"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-15282"},{"type":"WEB","url":"https://github.com/python/cpython/commit/34d76b00dabde81a793bd06dd8ecb057838c4b38"},{"type":"WEB","url":"https://github.com/python/cpython/commit/3f396ca9d7bbe2a50ea6b8c9b27c0082884d9f80"},{"type":"WEB","url":"https://github.com/python/cpython/commit/4ed11d3cd288e6b90196a15c5a825a45d318fe47"},{"type":"WEB","url":"https://github.com/python/cpython/commit/a35ca3be5842505dab74dc0b90b89cde0405017a"}],"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-2025-15282.json"},"severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:L/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"}