{"id":"CVE-2011-1156","aliases":["GHSA-6h52-4vmh-8x4f","PYSEC-2011-19"],"url":"https://o3.security/vulnerability/CVE-2011-1156","summary":"feedparser denial of service vulnerability","details":"feedparser.py in Universal Feed Parser (aka feedparser or python-feedparser) before 5.0.1 allows remote attackers to cause a denial of service (application crash) via a malformed DOCTYPE declaration.","published":"2011-04-11T18:55:03Z","modified":"2026-04-10T03:41:42.554051Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":3,"affectedPackages":[{"ecosystem":"PyPI","name":"feedparser","fixedVersion":"5.0.1"}],"fix":null,"references":[{"type":"ADVISORY","url":"http://secunia.com/advisories/43730"},{"type":"ADVISORY","url":"http://secunia.com/advisories/44074"},{"type":"ADVISORY","url":"http://www.mandriva.com/security/advisories?name=MDVSA-2011:082"},{"type":"EVIDENCE","url":"http://openwall.com/lists/oss-security/2011/03/15/11"},{"type":"EVIDENCE","url":"https://bugzilla.novell.com/show_bug.cgi?id=680074"},{"type":"EVIDENCE","url":"https://code.google.com/p/feedparser/issues/detail?id=91"},{"type":"FIX","url":"http://openwall.com/lists/oss-security/2011/03/14/18"},{"type":"FIX","url":"http://openwall.com/lists/oss-security/2011/03/15/11"},{"type":"FIX","url":"https://bugzilla.novell.com/show_bug.cgi?id=680074"},{"type":"FIX","url":"https://code.google.com/p/feedparser/issues/detail?id=91"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=684877"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-updates/2011-04/msg00026.html"},{"type":"WEB","url":"http://support.novell.com/security/cve/CVE-2011-1156.html"},{"type":"WEB","url":"http://www.securityfocus.com/bid/46867"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-04-10T03:41:42.554051Z"}}