{"id":"CVE-2026-10725","summary":"Protocol::HTTP2 versions before 1.13 for Perl is vulnerable to a HTTP/2 Bomb","details":"Protocol::HTTP2 versions before 1.13 for Perl is vulnerable to a HTTP/2 Bomb.\n\nProtocol::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\").\n\nThe 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.\n\nMAX_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":"2026-07-15T01:49:04.742198415Z","published":"2026-06-06T09:14:45.652Z","related":["SUSE-SU-2026:22188-1","SUSE-SU-2026:2306-1","openSUSE-SU-2026:10988-1","openSUSE-SU-2026:21125-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/10xxx/CVE-2026-10725.json","cna_assigner":"CPANSec","cwe_ids":["CWE-409"]},"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2026/06/06/7"},{"type":"WEB","url":"https://cpan.org/modules"},{"type":"WEB","url":"https://metacpan.org/release/CRUX/Protocol-HTTP2-1.12/source/lib/Protocol/HTTP2/HeaderCompression.pm#L133"},{"type":"WEB","url":"https://metacpan.org/release/CRUX/Protocol-HTTP2-1.12/source/lib/Protocol/HTTP2/Stream.pm#L414"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/10xxx/CVE-2026-10725.json"},{"type":"ADVISORY","url":"https://metacpan.org/release/CRUX/Protocol-HTTP2-1.13/changes"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-10725"},{"type":"FIX","url":"https://github.com/vlet/p5-Protocol-HTTP2/commit/822bf22224adbd662e8d0b865eeacb2b294d16cd.patch"},{"type":"FIX","url":"https://security.metacpan.org/patches/P/Protocol-HTTP2/1.12/CVE-2026-10725-r2.patch"},{"type":"PACKAGE","url":"https://github.com/vlet/p5-Protocol-HTTP2"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/vlet/p5-protocol-http2","events":[{"introduced":"0"},{"fixed":"0252ec2736b60aa95e9390679405a2ef197122e6"},{"fixed":"822bf22224adbd662e8d0b865eeacb2b294d16cd"}],"database_specific":{"source":["CPE_RANGE","REFERENCES"],"cpe":"cpe:2.3:a:crux:protocol\\:\\:http2:*:*:*:*:*:perl:*:*","extracted_events":[{"introduced":"0"},{"fixed":"1.13"}]}}],"versions":["1.12","1.11","1.10","1.09","1.08","1.07","1.06","1.05","1.04","1.03","1.02","1.01","1.00","0.16","0.15","0.14","0.13","0.12","0.11","0.10","0.09","0.08","0.07","0.06","0.05","0.04","0.03","0.02","0.01"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-10725.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}