{"id":"DEBIAN-CVE-2026-10725","details":"Protocol::HTTP2 versions before 1.13 for Perl is vulnerable to a HTTP/2 Bomb.  Protocol::HTTP2's inbound HPACK path has no header-list size limit, so a small HTTP/2 request can expand into large server memory (the \"HTTP/2 bomb\").  The headers_decode method materialises a full key+value copy per indexed reference with no running size check, and the stream_header_block_add method appends (since version 1.12) every CONTINUATION frame to the per-stream buffer unbounded.  MAX_HEADER_LIST_SIZE (default 65536) is advertised in SETTINGS but never consulted on decode.  It is absent from the decoder and from the :limits export tag.","modified":"2026-09-14T17:00:39.405318808Z","published":"2026-06-06T10:16:25.790Z","upstream":["CVE-2026-10725"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-10725"}],"affected":[{"package":{"name":"libprotocol-http2-perl","ecosystem":"Debian:12","purl":"pkg:deb/debian/libprotocol-http2-perl?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.10-2","1.10-3","1.11-1","1.12-1","1.12-2","1.13-1","1.14-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-10725.json"}},{"package":{"name":"libprotocol-http2-perl","ecosystem":"Debian:13","purl":"pkg:deb/debian/libprotocol-http2-perl?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.11-1","1.12-1","1.12-2","1.13-1","1.14-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-10725.json"}},{"package":{"name":"libprotocol-http2-perl","ecosystem":"Debian:14","purl":"pkg:deb/debian/libprotocol-http2-perl?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.12-2"}]}],"versions":["1.11-1","1.12-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-10725.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}