Vulnerability-Lookup

CVE-2026-10725 (GCVE-0-2026-10725)

Vulnerability from cvelistv5 – Published: 2026-06-06 09:14 – Updated: 2026-06-09 07:20

Title

Protocol::HTTP2 versions before 1.13 for Perl is vulnerable to a HTTP/2 Bomb

Summary

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.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-08 18:12 UTC

CWE

CWE-409 - Improper Handling of Highly Compressed Data (Data Amplification)

Assigner

CPANSec redhat root

References

6 references

URL	Tags
https://metacpan.org/release/CRUX/Protocol-HTTP2-…	release-notes
https://metacpan.org/release/CRUX/Protocol-HTTP2-…
https://metacpan.org/release/CRUX/Protocol-HTTP2-…
https://github.com/vlet/p5-Protocol-HTTP2/commit/…	patch
https://security.metacpan.org/patches/P/Protocol-…	patch
http://www.openwall.com/lists/oss-security/2026/06/06/7

Impacted products

1 product

Vendor	Product	Version	CPE status
CRUX	Protocol::HTTP2	Affected: 0 , < 1.13 (custom)	guessed

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-10725

Vulnerability from fkie_nvd - Published: 2026-06-06 10:16 - Updated: 2026-07-23 07:10

Severity

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Summary

References

URL	Tags
9b29abf9-4ab0-4765-b253-1875cd9b441e	https://github.com/vlet/p5-Protocol-HTTP2/commit/822bf22224adbd662e8d0b865eeacb2b294d16cd.patch	Patch
9b29abf9-4ab0-4765-b253-1875cd9b441e	https://metacpan.org/release/CRUX/Protocol-HTTP2-1.12/source/lib/Protocol/HTTP2/HeaderCompression.pm#L133	Product
9b29abf9-4ab0-4765-b253-1875cd9b441e	https://metacpan.org/release/CRUX/Protocol-HTTP2-1.12/source/lib/Protocol/HTTP2/Stream.pm#L414	Product
9b29abf9-4ab0-4765-b253-1875cd9b441e	https://metacpan.org/release/CRUX/Protocol-HTTP2-1.13/changes	Release Notes
9b29abf9-4ab0-4765-b253-1875cd9b441e	https://security.metacpan.org/patches/P/Protocol-HTTP2/1.12/CVE-2026-10725-r2.patch	Patch
af854a3a-2127-422b-91ae-364da2661108	http://www.openwall.com/lists/oss-security/2026/06/06/7	Mailing List, Third Party Advisory

Impacted products

	Vendor	Product	Version
	crux	protocol\	\

JSON

To clipboard

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        {
          "collectionURL": "https://cpan.org/modules",
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    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-10725",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-06-08T18:12:28.230486Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-06-06T10:16:25.790",
  "references": [
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/vlet/p5-Protocol-HTTP2/commit/822bf22224adbd662e8d0b865eeacb2b294d16cd.patch"
    },
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "tags": [
        "Product"
      ],
      "url": "https://metacpan.org/release/CRUX/Protocol-HTTP2-1.12/source/lib/Protocol/HTTP2/HeaderCompression.pm#L133"
    },
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "tags": [
        "Product"
      ],
      "url": "https://metacpan.org/release/CRUX/Protocol-HTTP2-1.12/source/lib/Protocol/HTTP2/Stream.pm#L414"
    },
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "tags": [
        "Release Notes"
      ],
      "url": "https://metacpan.org/release/CRUX/Protocol-HTTP2-1.13/changes"
    },
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "tags": [
        "Patch"
      ],
      "url": "https://security.metacpan.org/patches/P/Protocol-HTTP2/1.12/CVE-2026-10725-r2.patch"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2026/06/06/7"
    }
  ],
  "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-409"
        }
      ],
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "type": "Secondary"
    }
  ]
}

GHSA-Q432-RMQV-HH8M

Vulnerability from github – Published: 2026-06-06 12:31 – Updated: 2026-06-09 09:32

Details

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.

Severity

7.5 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-10725"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-409"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-06T10:16:25Z",
    "severity": "HIGH"
  },
  "details": "Protocol::HTTP2 versions through 1.12 for Perl is vulnerable to a HTTP/2 Bomb.\n\nProtocol::HTTP2\u0027s 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.",
  "id": "GHSA-q432-rmqv-hh8m",
  "modified": "2026-06-09T09:32:06Z",
  "published": "2026-06-06T12:31:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-10725"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vlet/p5-Protocol-HTTP2/commit/822bf22224adbd662e8d0b865eeacb2b294d16cd.patch"
    },
    {
      "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": "WEB",
      "url": "https://metacpan.org/release/CRUX/Protocol-HTTP2-1.13/changes"
    },
    {
      "type": "WEB",
      "url": "https://security.metacpan.org/patches/P/Protocol-HTTP2/1.12/CVE-2026-10725-r1.patch"
    },
    {
      "type": "WEB",
      "url": "https://security.metacpan.org/patches/P/Protocol-HTTP2/1.12/CVE-2026-10725-r2.patch"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/06/06/7"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

SUSE-SU-2026:22188-1

Vulnerability from csaf_suse - Published: 2026-06-20 06:49 - Updated: 2026-06-20 06:49

Summary

Security update for perl-Protocol-HTTP2

Severity

Important

Scope

1 vulnerability in this advisory, including CVE-2026-10725.

CVE-2026-10725

7.5 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Recommended: 2 products

Open the full advisory

SUSE-SU-2026:2306-1

Vulnerability from csaf_suse - Published: 2026-06-09 07:58 - Updated: 2026-06-09 07:58

Summary

Security update for perl-Protocol-HTTP2

Severity

Important

Scope

1 vulnerability in this advisory, including CVE-2026-10725.

CVE-2026-10725

7.5 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Recommended: 1 product

Open the full advisory

ubuntu-cve-2026-10725

Vulnerability from osv_ubuntu

Published

2026-06-06 10:16

Modified

2026-06-11 13:02

Summary

Details

Severity

7.5 (High)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-10725	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-10725	REPORT
	https://lists.security.metacpan.org/cve-announce/…	REPORT
	https://security.metacpan.org/patches/P/Protocol-…	REPORT
	https://metacpan.org/release/CRUX/Protocol-HTTP2-…	REPORT
	https://metacpan.org/release/CRUX/Protocol-HTTP2-…	REPORT
	http://www.openwall.com/lists/oss-security/2026/06/06/7	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libprotocol-http2-perl",
            "binary_version": "1.08-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "libprotocol-http2-perl",
        "purl": "pkg:deb/ubuntu/libprotocol-http2-perl@1.08-1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.08-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libprotocol-http2-perl",
            "binary_version": "1.10-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "libprotocol-http2-perl",
        "purl": "pkg:deb/ubuntu/libprotocol-http2-perl@1.10-1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.09-1",
        "1.10-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libprotocol-http2-perl",
            "binary_version": "1.10-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "libprotocol-http2-perl",
        "purl": "pkg:deb/ubuntu/libprotocol-http2-perl@1.10-1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.10-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libprotocol-http2-perl",
            "binary_version": "1.10-3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "libprotocol-http2-perl",
        "purl": "pkg:deb/ubuntu/libprotocol-http2-perl@1.10-3?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.10-3"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libprotocol-http2-perl",
            "binary_version": "1.11-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "libprotocol-http2-perl",
        "purl": "pkg:deb/ubuntu/libprotocol-http2-perl@1.11-1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.11-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libprotocol-http2-perl",
            "binary_version": "1.11-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "libprotocol-http2-perl",
        "purl": "pkg:deb/ubuntu/libprotocol-http2-perl@1.11-1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.11-1"
      ]
    }
  ],
  "aliases": [],
  "details": "Protocol::HTTP2 versions before 1.13 for Perl is vulnerable to a HTTP/2 Bomb. Protocol::HTTP2\u0027s 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.",
  "id": "UBUNTU-CVE-2026-10725",
  "modified": "2026-06-11T13:02:03Z",
  "published": "2026-06-06T10:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-10725"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-10725"
    },
    {
      "type": "REPORT",
      "url": "https://lists.security.metacpan.org/cve-announce/msg/40751319/"
    },
    {
      "type": "REPORT",
      "url": "https://security.metacpan.org/patches/P/Protocol-HTTP2/1.12/CVE-2026-10725-r1.patch"
    },
    {
      "type": "REPORT",
      "url": "https://metacpan.org/release/CRUX/Protocol-HTTP2-1.12/source/lib/Protocol/HTTP2/HeaderCompression.pm#L133"
    },
    {
      "type": "REPORT",
      "url": "https://metacpan.org/release/CRUX/Protocol-HTTP2-1.12/source/lib/Protocol/HTTP2/Stream.pm#L414"
    },
    {
      "type": "REPORT",
      "url": "http://www.openwall.com/lists/oss-security/2026/06/06/7"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-10725"
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-10725 (GCVE-0-2026-10725)

FKIE_CVE-2026-10725

GHSA-Q432-RMQV-HH8M

SUSE-SU-2026:22188-1

SUSE-SU-2026:2306-1

ubuntu-cve-2026-10725

Vulnerability from osv_ubuntu

Tags

Sightings

Nomenclature

Related by attack behaviour