{"id":"CLSA-2026-1784270796","summary":"Fix CVE(s): CVE-2026-15308","details":"   * SECURITY UPDATE: CPU denial-of-service in the html.parser module via\n     repeated unterminated markup declarations (quadratic complexity in the\n     incremental HTMLParser)\n     - debian/patches/CVE-2026-15308.patch: accumulate pending data in feed()\n       and parse on a doubling threshold instead of rescanning the whole\n       unparsed buffer each call, in Lib/html/parser.py\n     - CVE-2026-15308","modified":"2026-10-26T09:31:47.211405746Z","published":"2026-07-17T06:46:59Z","upstream":["CVE-2026-15308"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/ubuntu18.04els/CLSA-2026-1784270796.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-15308"}],"affected":[{"package":{"name":"idle-python3.6","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/idle-python3.6?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.9-1~18.04ubuntu1.12+tuxcare.els24"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1784270796.json"}},{"package":{"name":"libpython3.6","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/libpython3.6?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.9-1~18.04ubuntu1.12+tuxcare.els24"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1784270796.json"}},{"package":{"name":"libpython3.6-dev","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/libpython3.6-dev?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.9-1~18.04ubuntu1.12+tuxcare.els24"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1784270796.json"}},{"package":{"name":"libpython3.6-minimal","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/libpython3.6-minimal?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.9-1~18.04ubuntu1.12+tuxcare.els24"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1784270796.json"}},{"package":{"name":"libpython3.6-stdlib","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/libpython3.6-stdlib?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.9-1~18.04ubuntu1.12+tuxcare.els24"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1784270796.json"}},{"package":{"name":"libpython3.6-testsuite","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/libpython3.6-testsuite?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.9-1~18.04ubuntu1.12+tuxcare.els24"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1784270796.json"}},{"package":{"name":"python3.6","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/python3.6?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.9-1~18.04ubuntu1.12+tuxcare.els24"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1784270796.json"}},{"package":{"name":"python3.6-dev","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/python3.6-dev?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.9-1~18.04ubuntu1.12+tuxcare.els24"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1784270796.json"}},{"package":{"name":"python3.6-doc","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/python3.6-doc?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.9-1~18.04ubuntu1.12+tuxcare.els24"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1784270796.json"}},{"package":{"name":"python3.6-examples","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/python3.6-examples?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.9-1~18.04ubuntu1.12+tuxcare.els24"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1784270796.json"}},{"package":{"name":"python3.6-minimal","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/python3.6-minimal?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.9-1~18.04ubuntu1.12+tuxcare.els24"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1784270796.json"}},{"package":{"name":"python3.6-venv","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/python3.6-venv?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.9-1~18.04ubuntu1.12+tuxcare.els24"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1784270796.json"}}],"schema_version":"1.9.0"}