{"api_version":"1","generated_at":"2026-06-06T17:56:35+00:00","cve":"CVE-2026-10725","urls":{"html":"https://cve.report/CVE-2026-10725","api":"https://cve.report/api/cve/CVE-2026-10725.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-10725","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-10725"},"summary":{"title":"Protocol::HTTP2 versions through 1.12 for Perl is vulnerable to a HTTP/2 Bomb","description":"Protocol::HTTP2 versions through 1.12 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.","state":"PUBLISHED","assigner":"CPANSec","published_at":"2026-06-06 10:16:25","updated_at":"2026-06-06 12:16:39"},"problem_types":["CWE-409","CWE-409 CWE-409 Improper Handling of Highly Compressed Data (Data Amplification)"],"metrics":[],"references":[{"url":"https://metacpan.org/release/CRUX/Protocol-HTTP2-1.12/source/lib/Protocol/HTTP2/HeaderCompression.pm#L133","name":"https://metacpan.org/release/CRUX/Protocol-HTTP2-1.12/source/lib/Protocol/HTTP2/HeaderCompression.pm#L133","refsource":"9b29abf9-4ab0-4765-b253-1875cd9b441e","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://metacpan.org/release/CRUX/Protocol-HTTP2-1.12/source/lib/Protocol/HTTP2/Stream.pm#L414","name":"https://metacpan.org/release/CRUX/Protocol-HTTP2-1.12/source/lib/Protocol/HTTP2/Stream.pm#L414","refsource":"9b29abf9-4ab0-4765-b253-1875cd9b441e","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://security.metacpan.org/patches/P/Protocol-HTTP2/1.12/CVE-2026-10725-r1.patch","name":"https://security.metacpan.org/patches/P/Protocol-HTTP2/1.12/CVE-2026-10725-r1.patch","refsource":"9b29abf9-4ab0-4765-b253-1875cd9b441e","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"http://www.openwall.com/lists/oss-security/2026/06/06/7","name":"http://www.openwall.com/lists/oss-security/2026/06/06/7","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-10725","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-10725","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"CRUX","product":"Protocol::HTTP2","version":"affected 1.12 custom","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[{"source":"CNA","title":"","value":"Apply the patch.","time":"","lang":"en"}],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"providerMetadata":{"dateUpdated":"2026-06-06T11:31:33.020Z","orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE"},"references":[{"url":"http://www.openwall.com/lists/oss-security/2026/06/06/7"}],"title":"CVE Program Container"}],"cna":{"affected":[{"collectionURL":"https://cpan.org/modules","defaultStatus":"unaffected","packageName":"Protocol-HTTP2","product":"Protocol::HTTP2","programRoutines":[{"name":"Protocol::HTTP2::HeaderCompression::headers_decode"},{"name":"Protocol::HTTP2::Stream::stream_header_block_add"}],"repo":"https://github.com/vlet/p5-Protocol-HTTP2","vendor":"CRUX","versions":[{"lessThanOrEqual":"1.12","status":"affected","version":"0","versionType":"custom"}]}],"descriptions":[{"lang":"en","value":"Protocol::HTTP2 versions through 1.12 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."}],"problemTypes":[{"descriptions":[{"cweId":"CWE-409","description":"CWE-409 Improper Handling of Highly Compressed Data (Data Amplification)","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-06-06T09:14:45.652Z","orgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","shortName":"CPANSec"},"references":[{"url":"https://metacpan.org/release/CRUX/Protocol-HTTP2-1.12/source/lib/Protocol/HTTP2/HeaderCompression.pm#L133"},{"url":"https://metacpan.org/release/CRUX/Protocol-HTTP2-1.12/source/lib/Protocol/HTTP2/Stream.pm#L414"},{"tags":["patch"],"url":"https://security.metacpan.org/patches/P/Protocol-HTTP2/1.12/CVE-2026-10725-r1.patch"}],"source":{"discovery":"UNKNOWN"},"title":"Protocol::HTTP2 versions through 1.12 for Perl is vulnerable to a HTTP/2 Bomb","workarounds":[{"lang":"en","value":"Apply the patch."}],"x_generator":{"engine":"cpansec-cna-tool 0.1"}}},"cveMetadata":{"assignerOrgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","assignerShortName":"CPANSec","cveId":"CVE-2026-10725","datePublished":"2026-06-06T09:14:45.652Z","dateReserved":"2026-06-03T09:18:37.572Z","dateUpdated":"2026-06-06T11:31:33.020Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-06-06 10:16:25","lastModifiedDate":"2026-06-06 12:16:39","problem_types":["CWE-409","CWE-409 CWE-409 Improper Handling of Highly Compressed Data (Data Amplification)"],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"10725","Ordinal":"1","Title":"Protocol::HTTP2 versions through 1.12 for Perl is vulnerable to ","CVE":"CVE-2026-10725","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"10725","Ordinal":"1","NoteData":"Protocol::HTTP2 versions through 1.12 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.","Type":"Description","Title":"Protocol::HTTP2 versions through 1.12 for Perl is vulnerable to "}]}}}