GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

OPENSUSE-SU-2026:21125-1

Vulnerability from csaf_opensuse - Published: 2026-06-20 06:49 - Updated: 2026-09-17 17:36
Summary
Security update for perl-Protocol-HTTP2
Severity
Important
Notes
Title of the patch: Security update for perl-Protocol-HTTP2
Description of the patch: This update for perl-Protocol-HTTP2 fixes the following issue - CVE-2026-10725: denial of service due to absence of inbound HPACK header-list size limit (bsc#1267857).
Patchnames: openSUSE-Leap-16.0-990
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
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
Affected products
Product Identifier Version Remediation
Unresolved product id: openSUSE Leap 16.0:perl-Protocol-HTTP2-0:1.10-160000.3.1.noarch —
Vendor Fix
Threats
Impact important
References
To clipboard 

{
  "document": {
    "aggregate_severity": {
      "namespace": "https://www.suse.com/support/security/rating/",
      "text": "important"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Copyright 2024 SUSE LLC. All rights reserved.",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "Security update for perl-Protocol-HTTP2",
        "title": "Title of the patch"
      },
      {
        "category": "description",
        "text": "This update for perl-Protocol-HTTP2 fixes the following issue\n\n- CVE-2026-10725: denial of service due to absence of inbound HPACK header-list size limit (bsc#1267857).\n",
        "title": "Description of the patch"
      },
      {
        "category": "details",
        "text": "openSUSE-Leap-16.0-990",
        "title": "Patchnames"
      },
      {
        "category": "legal_disclaimer",
        "text": "CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).",
        "title": "Terms of use"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "https://www.suse.com/support/security/contact/",
      "name": "SUSE Product Security Team",
      "namespace": "https://www.suse.com/"
    },
    "references": [
      {
        "category": "external",
        "summary": "SUSE ratings",
        "url": "https://www.suse.com/support/security/rating/"
      },
      {
        "category": "self",
        "summary": "URL of this CSAF notice",
        "url": "https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_21125-1.json"
      },
      {
        "category": "self",
        "summary": "SUSE Bug 1267857",
        "url": "https://bugzilla.suse.com/1267857"
      },
      {
        "category": "self",
        "summary": "SUSE CVE CVE-2026-10725 page",
        "url": "https://www.suse.com/security/cve/CVE-2026-10725/"
      }
    ],
    "title": "Security update for perl-Protocol-HTTP2",
    "tracking": {
      "current_release_date": "2026-09-17T17:36:43Z",
      "generator": {
        "date": "2026-06-20T06:49:47Z",
        "engine": {
          "name": "cve-database.git:bin/generate-csaf.pl",
          "version": "1"
        }
      },
      "id": "openSUSE-SU-2026:21125-1",
      "initial_release_date": "2026-06-20T06:49:47Z",
      "revision_history": [
        {
          "date": "2026-06-20T06:49:47Z",
          "number": "1",
          "summary": "Current version"
        },
        {
          "date": "2026-09-16T20:39:38Z",
          "number": "2",
          "summary": "unknown changes"
        },
        {
          "date": "2026-09-16T21:41:50Z",
          "number": "3",
          "summary": "unknown changes"
        },
        {
          "date": "2026-09-17T17:36:43Z",
          "number": "4",
          "summary": "unknown changes"
        }
      ],
      "status": "final",
      "version": "4"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "perl-Protocol-HTTP2-0:1.10-160000.3.1.noarch",
                "product": {
                  "name": "perl-Protocol-HTTP2-0:1.10-160000.3.1.noarch",
                  "product_id": "perl-Protocol-HTTP2-0:1.10-160000.3.1.noarch",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/suse/perl-Protocol-HTTP2@1.10-160000.3.1?arch=noarch\u0026upstream=perl-Protocol-HTTP2-0:1.10-160000.3.1.src.rpm"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "noarch"
          },
          {
            "branches": [
              {
                "category": "product_name",
                "name": "openSUSE Leap 16.0",
                "product": {
                  "name": "openSUSE Leap 16.0",
                  "product_id": "openSUSE Leap 16.0"
                }
              }
            ],
            "category": "product_family",
            "name": "SUSE Linux Enterprise"
          }
        ],
        "category": "vendor",
        "name": "SUSE"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "perl-Protocol-HTTP2-0:1.10-160000.3.1.noarch as component of openSUSE Leap 16.0",
          "product_id": "openSUSE Leap 16.0:perl-Protocol-HTTP2-0:1.10-160000.3.1.noarch"
        },
        "product_reference": "perl-Protocol-HTTP2-0:1.10-160000.3.1.noarch",
        "relates_to_product_reference": "openSUSE Leap 16.0"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-10725",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2026-10725"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "Protocol::HTTP2 versions before 1.13 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.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "openSUSE Leap 16.0:perl-Protocol-HTTP2-0:1.10-160000.3.1.noarch"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2026-10725",
          "url": "https://www.suse.com/security/cve/CVE-2026-10725"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1267857 for CVE-2026-10725",
          "url": "https://bugzilla.suse.com/1267857"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "openSUSE Leap 16.0:perl-Protocol-HTTP2-0:1.10-160000.3.1.noarch"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "openSUSE Leap 16.0:perl-Protocol-HTTP2-0:1.10-160000.3.1.noarch"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2026-06-20T06:49:47Z",
          "details": "important"
        }
      ],
      "title": "CVE-2026-10725"
    }
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.


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.