{"id":"RHSA-2026:1088","summary":"Red Hat Security Advisory: python3.12-urllib3 security update","modified":"2026-04-04T10:04:31Z","published":"2026-02-11T10:08:04Z","upstream":["CVE-2025-66418","CVE-2025-66471","CVE-2026-21441"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:1088"},{"type":"ARTICLE","url":"https://access.redhat.com/security/updates/classification/#important"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2419455"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2419467"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2427726"},{"type":"ADVISORY","url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_1088.json"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2025-66418"},{"type":"ADVISORY","url":"https://www.cve.org/CVERecord?id=CVE-2025-66418"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-66418"},{"type":"ARTICLE","url":"https://github.com/urllib3/urllib3/commit/24d7b67eac89f94e11003424bcf0d8f7b72222a8"},{"type":"ARTICLE","url":"https://github.com/urllib3/urllib3/security/advisories/GHSA-gm62-xv2j-4w53"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2025-66471"},{"type":"ADVISORY","url":"https://www.cve.org/CVERecord?id=CVE-2025-66471"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-66471"},{"type":"ARTICLE","url":"https://github.com/urllib3/urllib3/commit/c19571de34c47de3a766541b041637ba5f716ed7"},{"type":"ARTICLE","url":"https://github.com/urllib3/urllib3/security/advisories/GHSA-2xpw-w6gg-jr37"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-21441"},{"type":"ADVISORY","url":"https://www.cve.org/CVERecord?id=CVE-2026-21441"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-21441"},{"type":"ARTICLE","url":"https://github.com/urllib3/urllib3/commit/8864ac407bba8607950025e0979c4c69bc7abc7b"},{"type":"ARTICLE","url":"https://github.com/urllib3/urllib3/security/advisories/GHSA-38jv-5279-wg99"}],"affected":[{"package":{"name":"python3.12-urllib3","ecosystem":"Red Hat:enterprise_linux:9::appstream","purl":"pkg:rpm/redhat/python3.12-urllib3"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.26.19-1.el9_7.1"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:1088.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}