{"action":"Upgrade qpdf to 9.0.0-1 or later.","affected":[{"fixed":"9.0.0-1","introduced":"0"}],"component":"qpdf","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["9.0.0-1"],"id":"tcs_01M5ND6FFJ4Z355NHGYRVHRQV0","modified_at":"2026-10-23T18:03:55.726711965Z","published_at":"2018-10-06T14:29:00.660Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2018-18020","https://security-tracker.debian.org/tracker/CVE-2018-18020"],"severity":{"label":"low","score":3.3},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2018-18020#Debian:13/qpdf","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2018-18020"}],"summary":"In QPDF 8.2.1, in libqpdf/QPDFWriter.cc, QPDFWriter::unparseObject and QPDFWriter::unparseChild have recursive calls for a long time, which allows remote attackers to cause a denial of service via a c"}