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EUVD-2026-325737

fkie_cve-2026-10725

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.

GHSA-q432-rmqv-hh8m

Protocol::HTTP2 versions through 1.12 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").

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.

openSUSE-SU-2026:10988-1 — perl-Protocol-HTTP2-1.130.0-1.1 on GA media

perl-Protocol-HTTP2-1.130.0-1.1 on GA media

SUSE-SU-2026:22188-1 — Security update for perl-Protocol-HTTP2

Security update for perl-Protocol-HTTP2

UBUNTU-CVE-2026-10725

Affected: Ubuntu:18.04:LTS: libprotocol-http2-perl, Ubuntu:20.04:LTS: libprotocol-http2-perl, Ubuntu:22.04:LTS: libprotocol-http2-perl, Ubuntu:24.04:LTS: libprotocol-http2-perl, Ubuntu:25.10: libprotocol-http2-perl, Ubuntu:26.04:LTS: libprotocol-http2-perl

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.