{"id":"CLSA-2026-1783703079","summary":"python: Fix of 3 CVEs","details":"- CVE-2026-0672: reject control characters in the Cookie module - add the\n  _has_control_character() helper and validate in Morsel.__setitem__,\n  Morsel.setdefault(), Morsel.set() and BaseCookie.output(). Applied as the\n  prerequisite for CVE-2026-3644; Python 2.7.5 shipped neither fix.\n- CVE-2026-3644: reject control characters in Morsel.update(), the unpickling\n  path (Morsel.__setstate__) and Morsel.js_output().\n- CVE-2026-4224: guard conv_content_model() in pyexpat with\n  Py_EnterRecursiveCall()/Py_LeaveRecursiveCall() to avoid a C stack overflow\n  when parsing a deeply nested content model in an inline DTD with a registered\n  ElementDeclHandler.\n- CVE-2025-13462: skip the old-v7 AREGTYPE -\u003e DIRTYPE normalization in tarfile\n  when reading a follow-up header (GNU long name/link or PAX extended header),\n  so crafted multi-block members are no longer misinterpreted.","modified":"2026-10-26T09:43:31.219100761Z","published":"2026-07-10T17:05:13Z","upstream":["CVE-2025-13462","CVE-2026-0672","CVE-2026-3644","CVE-2026-4224"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/rhel7els/CLSA-2026-1783703079.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-13462"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-3644"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-4224"}],"affected":[{"package":{"name":"python","ecosystem":"TuxCare:RHEL:7","purl":"pkg:rpm/tuxcare/python?distro=rhel-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.7.5-94.0.1.el7_9.tuxcare.els11"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1783703079.json"}},{"package":{"name":"python-debug","ecosystem":"TuxCare:RHEL:7","purl":"pkg:rpm/tuxcare/python-debug?distro=rhel-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.7.5-94.0.1.el7_9.tuxcare.els11"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1783703079.json"}},{"package":{"name":"python-devel","ecosystem":"TuxCare:RHEL:7","purl":"pkg:rpm/tuxcare/python-devel?distro=rhel-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.7.5-94.0.1.el7_9.tuxcare.els11"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1783703079.json"}},{"package":{"name":"python-libs","ecosystem":"TuxCare:RHEL:7","purl":"pkg:rpm/tuxcare/python-libs?distro=rhel-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.7.5-94.0.1.el7_9.tuxcare.els11"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1783703079.json"}},{"package":{"name":"python-test","ecosystem":"TuxCare:RHEL:7","purl":"pkg:rpm/tuxcare/python-test?distro=rhel-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.7.5-94.0.1.el7_9.tuxcare.els11"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1783703079.json"}},{"package":{"name":"python-tools","ecosystem":"TuxCare:RHEL:7","purl":"pkg:rpm/tuxcare/python-tools?distro=rhel-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.7.5-94.0.1.el7_9.tuxcare.els11"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1783703079.json"}},{"package":{"name":"tkinter","ecosystem":"TuxCare:RHEL:7","purl":"pkg:rpm/tuxcare/tkinter?distro=rhel-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.7.5-94.0.1.el7_9.tuxcare.els11"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1783703079.json"}}],"schema_version":"1.9.0"}