{"id":"CLSA-2026-1782159334","summary":"python3: Fix of 3 CVEs","details":"- CVE-2026-0672: reject control characters in http.cookies Morsel keys,\n  values, and parameters (and in BaseCookie.output) to prevent HTTP header\n  injection via user-controlled cookie data\n- CVE-2026-3644: follow-up to CVE-2026-0672, rejecting control characters\n  in the http.cookies.Morsel paths the original fix missed (update(), the\n  |= operator, and unpickling) and validating Morsel.js_output() output\n- CVE-2026-4224: guard conv_content_model() in pyexpat against unbounded C\n  recursion when an ElementDeclHandler parses a deeply nested inline DTD\n  content model, raising RecursionError instead of crashing the interpreter","modified":"2026-10-26T09:31:49.612747075Z","published":"2026-06-24T09:18:00Z","upstream":["CVE-2026-0672","CVE-2026-3644","CVE-2026-4224"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/centos8.4els/CLSA-2026-1782159334.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-0672"},{"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":"platform-python","ecosystem":"TuxCare:CentOS:8.4","purl":"pkg:rpm/tuxcare/platform-python?distro=centos-8.4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.8-40.el8_4.tuxcare.els22"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos8.4els/CLSA-2026-1782159334.json"}},{"package":{"name":"platform-python-debug","ecosystem":"TuxCare:CentOS:8.4","purl":"pkg:rpm/tuxcare/platform-python-debug?distro=centos-8.4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.8-40.el8_4.tuxcare.els22"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos8.4els/CLSA-2026-1782159334.json"}},{"package":{"name":"platform-python-devel","ecosystem":"TuxCare:CentOS:8.4","purl":"pkg:rpm/tuxcare/platform-python-devel?distro=centos-8.4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.8-40.el8_4.tuxcare.els22"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos8.4els/CLSA-2026-1782159334.json"}},{"package":{"name":"python3-devel","ecosystem":"TuxCare:CentOS:8.4","purl":"pkg:rpm/tuxcare/python3-devel?distro=centos-8.4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.8-40.el8_4.tuxcare.els22"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos8.4els/CLSA-2026-1782159334.json"}},{"package":{"name":"python3-idle","ecosystem":"TuxCare:CentOS:8.4","purl":"pkg:rpm/tuxcare/python3-idle?distro=centos-8.4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.8-40.el8_4.tuxcare.els22"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos8.4els/CLSA-2026-1782159334.json"}},{"package":{"name":"python3-libs","ecosystem":"TuxCare:CentOS:8.4","purl":"pkg:rpm/tuxcare/python3-libs?distro=centos-8.4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.8-40.el8_4.tuxcare.els22"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos8.4els/CLSA-2026-1782159334.json"}},{"package":{"name":"python3-test","ecosystem":"TuxCare:CentOS:8.4","purl":"pkg:rpm/tuxcare/python3-test?distro=centos-8.4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.8-40.el8_4.tuxcare.els22"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos8.4els/CLSA-2026-1782159334.json"}},{"package":{"name":"python3-tkinter","ecosystem":"TuxCare:CentOS:8.4","purl":"pkg:rpm/tuxcare/python3-tkinter?distro=centos-8.4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.8-40.el8_4.tuxcare.els22"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos8.4els/CLSA-2026-1782159334.json"}}],"schema_version":"1.9.0"}