{
   "document": {
      "category": "csaf_security_advisory",
      "csaf_version": "2.0",
      "distribution": {
         "tlp": {
            "label": "WHITE",
            "url": "https://www.first.org/tlp/"
         }
      },
      "lang": "en",
      "notes": [
         {
            "category": "description",
            "text": "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\").  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.",
            "title": "Vulnerability Description"
         }
      ],
      "publisher": {
         "category": "other",
         "contact_details": "gdt@cpan.org",
         "name": "giterlizzi",
         "namespace": "https://github.com/giterlizzi/"
      },
      "references": [
         {
            "category": "self",
            "summary": "CPANSA-Protocol-HTTP2-2026-10725 JSON",
            "url": "https://raw.githubusercontent.com/giterlizzi/perl-CPANSA-CSAF/develop/csaf/white/2026/cpansa-protocol-http2-2026-10725.json"
         },
         {
            "category": "external",
            "summary": "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/HeaderCompression.pm#L133"
         },
         {
            "category": "external",
            "summary": "https://metacpan.org/release/CRUX/Protocol-HTTP2-1.12/source/lib/Protocol/HTTP2/Stream.pm#L414",
            "url": "https://metacpan.org/release/CRUX/Protocol-HTTP2-1.12/source/lib/Protocol/HTTP2/Stream.pm#L414"
         },
         {
            "category": "external",
            "summary": "https://security.metacpan.org/patches/P/Protocol-HTTP2/1.12/CVE-2026-10725-r1.patch",
            "url": "https://security.metacpan.org/patches/P/Protocol-HTTP2/1.12/CVE-2026-10725-r1.patch"
         },
         {
            "category": "external",
            "summary": "http://www.openwall.com/lists/oss-security/2026/06/06/7",
            "url": "http://www.openwall.com/lists/oss-security/2026/06/06/7"
         },
         {
            "category": "external",
            "summary": "CVE-2026-10725 (NVD)",
            "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-10725"
         }
      ],
      "title": "Protocol-HTTP2 vulnerability",
      "tracking": {
         "current_release_date": "2026-06-06T00:00:00",
         "generator": {
            "engine": {
               "name": "CSAF Perl Toolkit",
               "version": "0.26"
            }
         },
         "id": "CPANSA-Protocol-HTTP2-2026-10725",
         "initial_release_date": "2026-06-06T00:00:00",
         "revision_history": [
            {
               "date": "2026-06-06T00:00:00",
               "number": "1",
               "summary": "First release"
            }
         ],
         "status": "final",
         "version": "1"
      }
   },
   "product_tree": {
      "branches": [
         {
            "branches": [
               {
                  "category": "product_version_range",
                  "name": "vers:cpan/>0",
                  "product": {
                     "name": "Protocol-HTTP2 greater than 0",
                     "product_id": "CSAFPID-0001",
                     "product_identification_helper": {
                        "purl": "pkg:cpan/Protocol-HTTP2"
                     }
                  }
               }
            ],
            "category": "product_name",
            "name": "Protocol-HTTP2"
         }
      ]
   },
   "vulnerabilities": [
      {
         "cve": "CVE-2026-10725",
         "cwe": {
            "id": "CWE-409",
            "name": "Improper Handling of Highly Compressed Data (Data Amplification)"
         },
         "notes": [
            {
               "category": "description",
               "text": "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.",
               "title": "Vulnerability Description"
            }
         ],
         "product_status": {
            "known_affected": [
               "CSAFPID-0001"
            ]
         }
      }
   ]
}