{"schema_version":"1.7.5","id":"SUSE-SU-2026:20028-1","published":"2026-01-12T10:30:08Z","modified":"2026-03-23T04:52:30.626760Z","related":["CVE-2025-67724","CVE-2025-67725","CVE-2025-67726"],"upstream":["CVE-2025-67724","CVE-2025-67725","CVE-2025-67726"],"summary":"Security update for python-tornado6","details":"This update for python-tornado6 fixes the following issues:\n\n- CVE-2025-67724: unescaped `reason` argument used in HTTP headers and in HTML default error pages can be used by\n  attackers to launch header injection or XSS attacks (bsc#1254903).\n- CVE-2025-67725: quadratic complexity of string concatenation operations used by the `HTTPHeaders.add` method can lead\n  o DoS when processing a maliciously crafted HTTP request (bsc#1254905).\n- CVE-2025-67726: quadratic complexity algorithm used in the `_parseparam` function of `httputil.py` can lead to DoS\n  when processing maliciously crafted parameters in a `Content-Disposition` header (bsc#1254904).\n","affected":[{"package":{"name":"python-tornado6","ecosystem":"SUSE:Linux Enterprise Server 16.0","purl":"pkg:rpm/suse/python-tornado6&distro=SUSE%20Linux%20Enterprise%20Server%2016.0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.5-160000.3.1"}]}],"ecosystem_specific":{"binaries":[{"python313-tornado6":"6.5-160000.3.1"}]},"database_specific":{"source":"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:20028-1.json"}},{"package":{"name":"python-tornado6","ecosystem":"SUSE:Linux Enterprise Server for SAP applications 16.0","purl":"pkg:rpm/suse/python-tornado6&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.5-160000.3.1"}]}],"ecosystem_specific":{"binaries":[{"python313-tornado6":"6.5-160000.3.1"}]},"database_specific":{"source":"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:20028-1.json"}}],"references":[{"type":"ADVISORY","url":"https://www.suse.com/support/update/announcement/2026/suse-su-202620028-1/"},{"type":"REPORT","url":"https://bugzilla.suse.com/1254903"},{"type":"REPORT","url":"https://bugzilla.suse.com/1254904"},{"type":"REPORT","url":"https://bugzilla.suse.com/1254905"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2025-67724"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2025-67725"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2025-67726"}]}