{ "threat_severity" : "Moderate", "public_date" : "2026-01-20T21:35:13Z", "bugzilla" : { "description" : "cpython: Header injection via newlines in data URL mediatype in Python", "id" : "2431366", "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2431366" }, "cvss3" : { "cvss3_base_score" : "4.8", "cvss3_scoring_vector" : "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N", "status" : "verified" }, "cwe" : "CWE-93", "details" : [ "User-controlled data URLs parsed by urllib.request.DataHandler allow injecting headers through newlines in the data URL mediatype.", "Missing newline filtering has been discovered in Python. User-controlled data URLs parsed by urllib.request.DataHandler allow injecting headers through newlines in the data URL mediatype." ], "affected_release" : [ { "product_name" : "Red Hat Enterprise Linux 8", "release_date" : "2026-04-27T00:00:00Z", "advisory" : "RHSA-2026:10950", "cpe" : "cpe:/a:redhat:enterprise_linux:8", "package" : "python3.12-0:3.12.13-2.el8_10" }, { "product_name" : "Red Hat Hardened Images", "release_date" : "2026-04-10T00:00:00Z", "advisory" : "RHSA-2026:7443", "cpe" : "cpe:/a:redhat:hummingbird:1", "package" : "python3-13-main-3.13.13-1.hum1" }, { "product_name" : "Red Hat Hardened Images", "release_date" : "2026-04-11T00:00:00Z", "advisory" : "RHSA-2026:7661", "cpe" : "cpe:/a:redhat:hummingbird:1", "package" : "python3-14-main-3.14.4-1.hum1" }, { "product_name" : "Red Hat Hardened Images", "release_date" : "2026-04-17T00:00:00Z", "advisory" : "RHSA-2026:8822", "cpe" : "cpe:/a:redhat:hummingbird:1", "package" : "python3-11-main-3.11.15-4.hum1" }, { "product_name" : "Red Hat Hardened Images", "release_date" : "2026-04-17T00:00:00Z", "advisory" : "RHSA-2026:8824", "cpe" : "cpe:/a:redhat:hummingbird:1", "package" : "python3-12-main-3.12.13-3.hum1" } ], "package_state" : [ { "product_name" : "Red Hat Enterprise Linux 10", "fix_state" : "Fix deferred", "package_name" : "firefox", "cpe" : "cpe:/o:redhat:enterprise_linux:10" }, { "product_name" : "Red Hat Enterprise Linux 10", "fix_state" : "Fix deferred", "package_name" : "python3.12", "cpe" : "cpe:/o:redhat:enterprise_linux:10" }, { "product_name" : "Red Hat Enterprise Linux 10", "fix_state" : "Fix deferred", "package_name" : "python3.14", "cpe" : "cpe:/o:redhat:enterprise_linux:10" }, { "product_name" : "Red Hat Enterprise Linux 6", "fix_state" : "Fix deferred", "package_name" : "python", "cpe" : "cpe:/o:redhat:enterprise_linux:6" }, { "product_name" : "Red Hat Enterprise Linux 7", "fix_state" : "Fix deferred", "package_name" : "firefox", "cpe" : "cpe:/o:redhat:enterprise_linux:7" }, { "product_name" : "Red Hat Enterprise Linux 7", "fix_state" : "Fix deferred", "package_name" : "python", "cpe" : "cpe:/o:redhat:enterprise_linux:7" }, { "product_name" : "Red Hat Enterprise Linux 7", "fix_state" : "Fix deferred", "package_name" : "python3", "cpe" : "cpe:/o:redhat:enterprise_linux:7" }, { "product_name" : "Red Hat Enterprise Linux 8", "fix_state" : "Fix deferred", "package_name" : "firefox", "cpe" : "cpe:/o:redhat:enterprise_linux:8" }, { "product_name" : "Red Hat Enterprise Linux 8", "fix_state" : "Fix deferred", "package_name" : "python3", "cpe" : "cpe:/o:redhat:enterprise_linux:8" }, { "product_name" : "Red Hat Enterprise Linux 8", "fix_state" : "Fix deferred", "package_name" : "python3.11", "cpe" : "cpe:/o:redhat:enterprise_linux:8" }, { "product_name" : "Red Hat Enterprise Linux 8", "fix_state" : "Fix deferred", "package_name" : "python36:3.6/python36", "cpe" : "cpe:/o:redhat:enterprise_linux:8" }, { "product_name" : "Red Hat Enterprise Linux 8", "fix_state" : "Fix deferred", "package_name" : "python39-devel:3.9/python39", "cpe" : "cpe:/o:redhat:enterprise_linux:8" }, { "product_name" : "Red Hat Enterprise Linux 9", "fix_state" : "Fix deferred", "package_name" : "firefox", "cpe" : "cpe:/o:redhat:enterprise_linux:9" }, { "product_name" : "Red Hat Enterprise Linux 9", "fix_state" : "Fix deferred", "package_name" : "python3.11", "cpe" : "cpe:/o:redhat:enterprise_linux:9" }, { "product_name" : "Red Hat Enterprise Linux 9", "fix_state" : "Fix deferred", "package_name" : "python3.12", "cpe" : "cpe:/o:redhat:enterprise_linux:9" }, { "product_name" : "Red Hat Enterprise Linux 9", "fix_state" : "Fix deferred", "package_name" : "python3.14", "cpe" : "cpe:/o:redhat:enterprise_linux:9" }, { "product_name" : "Red Hat Enterprise Linux 9", "fix_state" : "Fix deferred", "package_name" : "python3.9", "cpe" : "cpe:/o:redhat:enterprise_linux:9" }, { "product_name" : "Red Hat Enterprise Linux AI (RHEL AI) 3", "fix_state" : "Fix deferred", "package_name" : "rhelai3/bootc-aws-cuda-rhel9", "cpe" : "cpe:/a:redhat:enterprise_linux_ai:3" }, { "product_name" : "Red Hat Enterprise Linux AI (RHEL AI) 3", "fix_state" : "Fix deferred", "package_name" : "rhelai3/bootc-azure-cuda-rhel9", "cpe" : "cpe:/a:redhat:enterprise_linux_ai:3" }, { "product_name" : "Red Hat Enterprise Linux AI (RHEL AI) 3", "fix_state" : "Fix deferred", "package_name" : "rhelai3/bootc-cuda-rhel9", "cpe" : "cpe:/a:redhat:enterprise_linux_ai:3" }, { "product_name" : "Red Hat Enterprise Linux AI (RHEL AI) 3", "fix_state" : "Fix deferred", "package_name" : "rhelai3/bootc-gcp-cuda-rhel9", "cpe" : "cpe:/a:redhat:enterprise_linux_ai:3" } ], "references" : [ "https://www.cve.org/CVERecord?id=CVE-2025-15282\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-15282\nhttps://github.com/python/cpython/issues/143925\nhttps://github.com/python/cpython/pull/143926\nhttps://mail.python.org/archives/list/security-announce@python.org/thread/X66HL7SISGJT33J53OHXMZT4DFLMHVKF/" ], "name" : "CVE-2025-15282", "mitigation" : { "value" : "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.", "lang" : "en:us" }, "csaw" : false }