{"id":"CLSA-2026-1784297320","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":"2026-10-26T09:31:46.906781612Z","published":"2026-07-17T14:09:05Z","upstream":["CVE-2026-15308"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/ubuntu16.04els/CLSA-2026-1784297320.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-15308"}],"affected":[{"package":{"name":"idle-python3.5","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/idle-python3.5?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:3.5.2-2ubuntu0~16.04.13+tuxcare.els27"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1784297320.json"}},{"package":{"name":"libpython3.5","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/libpython3.5?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:3.5.2-2ubuntu0~16.04.13+tuxcare.els27"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1784297320.json"}},{"package":{"name":"libpython3.5-dev","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/libpython3.5-dev?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:3.5.2-2ubuntu0~16.04.13+tuxcare.els27"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1784297320.json"}},{"package":{"name":"libpython3.5-minimal","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/libpython3.5-minimal?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:3.5.2-2ubuntu0~16.04.13+tuxcare.els27"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1784297320.json"}},{"package":{"name":"libpython3.5-stdlib","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/libpython3.5-stdlib?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:3.5.2-2ubuntu0~16.04.13+tuxcare.els27"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1784297320.json"}},{"package":{"name":"libpython3.5-testsuite","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/libpython3.5-testsuite?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:3.5.2-2ubuntu0~16.04.13+tuxcare.els27"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1784297320.json"}},{"package":{"name":"python3.5","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/python3.5?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:3.5.2-2ubuntu0~16.04.13+tuxcare.els27"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1784297320.json"}},{"package":{"name":"python3.5-dev","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/python3.5-dev?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:3.5.2-2ubuntu0~16.04.13+tuxcare.els27"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1784297320.json"}},{"package":{"name":"python3.5-doc","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/python3.5-doc?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:3.5.2-2ubuntu0~16.04.13+tuxcare.els27"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1784297320.json"}},{"package":{"name":"python3.5-examples","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/python3.5-examples?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:3.5.2-2ubuntu0~16.04.13+tuxcare.els27"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1784297320.json"}},{"package":{"name":"python3.5-minimal","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/python3.5-minimal?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:3.5.2-2ubuntu0~16.04.13+tuxcare.els27"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1784297320.json"}},{"package":{"name":"python3.5-venv","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/python3.5-venv?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:3.5.2-2ubuntu0~16.04.13+tuxcare.els27"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1784297320.json"}}],"schema_ve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