{
  "document": {
    "aggregate_severity": {
      "text": "Important"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "TuxCare License Agreement",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Cloud Linux Inc. and provide a link to the original.",
        "title": "Terms of Use"
      },
      {
        "category": "details",
        "text": "CVE-2025-6176: fix excessive resource consumption during\n  brotli decompression",
        "title": "Details"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "https://tuxcare.com/contact/",
      "name": "TuxCare",
      "namespace": "https://tuxcare.com/"
    },
    "references": [
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.tuxcare.com/csaf/v2/els_os/tuxcare9.6esu/advisories/2026/clsa-2026_1770911837.json"
      },
      {
        "category": "self",
        "summary": "https://cve.tuxcare.com/els/releases/CLSA-2026:1770911837",
        "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1770911837"
      }
    ],
    "tracking": {
      "current_release_date": "2026-02-12T15:58:03Z",
      "generator": {
        "date": "2026-02-12T15:58:03Z",
        "engine": {
          "name": "pyCSAF"
        }
      },
      "id": "CLSA-2026:1770911837",
      "initial_release_date": "2026-02-12T15:58:03Z",
      "revision_history": [
        {
          "date": "2026-02-12T15:58:03Z",
          "number": "1",
          "summary": "Initial version"
        }
      ],
      "status": "final",
      "version": "1"
    },
    "title": "brotli: Fix of CVE-2025-6176"
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "AlmaLinux 9.6",
                "product": {
                  "name": "AlmaLinux 9.6",
                  "product_id": "AlmaLinux-9.6",
                  "product_identification_helper": {
                    "cpe": "cpe:2.3:o:almalinux:almalinux:9.6:*:*:*:*:*:*:*"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "AlmaLinux"
          }
        ],
        "category": "vendor",
        "name": "AlmaLinux OS Foundation"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Rocky Linux 9.6",
                "product": {
                  "name": "Rocky Linux 9.6",
                  "product_id": "Rocky Linux-9.6",
                  "product_identification_helper": {
                    "cpe": "cpe:2.3:o:resf:rocky_linux:9.6:*:*:*:*:*:*:*"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "Rocky Linux"
          }
        ],
        "category": "vendor",
        "name": "Rocky Linux"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "brotli-0:1.0.9-7.el9_5.tuxcare.els1.i686",
                "product": {
                  "name": "brotli-0:1.0.9-7.el9_5.tuxcare.els1.i686",
                  "product_id": "brotli-0:1.0.9-7.el9_5.tuxcare.els1.i686",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/tuxcare/brotli@1.0.9-7.el9_5.tuxcare.els1?arch=i686"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "brotli-devel-0:1.0.9-7.el9_5.tuxcare.els1.i686",
                "product": {
                  "name": "brotli-devel-0:1.0.9-7.el9_5.tuxcare.els1.i686",
                  "product_id": "brotli-devel-0:1.0.9-7.el9_5.tuxcare.els1.i686",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/tuxcare/brotli-devel@1.0.9-7.el9_5.tuxcare.els1?arch=i686"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "libbrotli-0:1.0.9-7.el9_5.tuxcare.els1.i686",
                "product": {
                  "name": "libbrotli-0:1.0.9-7.el9_5.tuxcare.els1.i686",
                  "product_id": "libbrotli-0:1.0.9-7.el9_5.tuxcare.els1.i686",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/tuxcare/libbrotli@1.0.9-7.el9_5.tuxcare.els1?arch=i686"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "i686"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "brotli-0:1.0.9-7.el9_5.tuxcare.els1.x86_64",
                "product": {
                  "name": "brotli-0:1.0.9-7.el9_5.tuxcare.els1.x86_64",
                  "product_id": "brotli-0:1.0.9-7.el9_5.tuxcare.els1.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/tuxcare/brotli@1.0.9-7.el9_5.tuxcare.els1?arch=x86_64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "python3-brotli-0:1.0.9-7.el9_5.tuxcare.els1.x86_64",
                "product": {
                  "name": "python3-brotli-0:1.0.9-7.el9_5.tuxcare.els1.x86_64",
                  "product_id": "python3-brotli-0:1.0.9-7.el9_5.tuxcare.els1.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/tuxcare/python3-brotli@1.0.9-7.el9_5.tuxcare.els1?arch=x86_64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "brotli-devel-0:1.0.9-7.el9_5.tuxcare.els1.x86_64",
                "product": {
                  "name": "brotli-devel-0:1.0.9-7.el9_5.tuxcare.els1.x86_64",
                  "product_id": "brotli-devel-0:1.0.9-7.el9_5.tuxcare.els1.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/tuxcare/brotli-devel@1.0.9-7.el9_5.tuxcare.els1?arch=x86_64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "libbrotli-0:1.0.9-7.el9_5.tuxcare.els1.x86_64",
                "product": {
                  "name": "libbrotli-0:1.0.9-7.el9_5.tuxcare.els1.x86_64",
                  "product_id": "libbrotli-0:1.0.9-7.el9_5.tuxcare.els1.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/tuxcare/libbrotli@1.0.9-7.el9_5.tuxcare.els1?arch=x86_64"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "x86_64"
          }
        ],
        "category": "vendor",
        "name": "TuxCare"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "brotli-0:1.0.9-7.el9_5.tuxcare.els1.i686 as a component of AlmaLinux 9.6",
          "product_id": "AlmaLinux-9.6:brotli-0:1.0.9-7.el9_5.tuxcare.els1.i686"
        },
        "product_reference": "brotli-0:1.0.9-7.el9_5.tuxcare.els1.i686",
        "relates_to_product_reference": "AlmaLinux-9.6"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "brotli-0:1.0.9-7.el9_5.tuxcare.els1.x86_64 as a component of AlmaLinux 9.6",
          "product_id": "AlmaLinux-9.6:brotli-0:1.0.9-7.el9_5.tuxcare.els1.x86_64"
        },
        "product_reference": "brotli-0:1.0.9-7.el9_5.tuxcare.els1.x86_64",
        "relates_to_product_reference": "AlmaLinux-9.6"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "python3-brotli-0:1.0.9-7.el9_5.tuxcare.els1.x86_64 as a component of AlmaLinux 9.6",
          "product_id": "AlmaLinux-9.6:python3-brotli-0:1.0.9-7.el9_5.tuxcare.els1.x86_64"
        },
        "product_reference": "python3-brotli-0:1.0.9-7.el9_5.tuxcare.els1.x86_64",
        "relates_to_product_reference": "AlmaLinux-9.6"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "brotli-devel-0:1.0.9-7.el9_5.tuxcare.els1.i686 as a component of AlmaLinux 9.6",
          "product_id": "AlmaLinux-9.6:brotli-devel-0:1.0.9-7.el9_5.tuxcare.els1.i686"
        },
        "product_reference": "brotli-devel-0:1.0.9-7.el9_5.tuxcare.els1.i686",
        "relates_to_product_reference": "AlmaLinux-9.6"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "brotli-devel-0:1.0.9-7.el9_5.tuxcare.els1.x86_64 as a component of AlmaLinux 9.6",
          "product_id": "AlmaLinux-9.6:brotli-devel-0:1.0.9-7.el9_5.tuxcare.els1.x86_64"
        },
        "product_reference": "brotli-devel-0:1.0.9-7.el9_5.tuxcare.els1.x86_64",
        "relates_to_product_reference": "AlmaLinux-9.6"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "libbrotli-0:1.0.9-7.el9_5.tuxcare.els1.i686 as a component of AlmaLinux 9.6",
          "product_id": "AlmaLinux-9.6:libbrotli-0:1.0.9-7.el9_5.tuxcare.els1.i686"
        },
        "product_reference": "libbrotli-0:1.0.9-7.el9_5.tuxcare.els1.i686",
        "relates_to_product_reference": "AlmaLinux-9.6"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "libbrotli-0:1.0.9-7.el9_5.tuxcare.els1.x86_64 as a component of AlmaLinux 9.6",
          "product_id": "AlmaLinux-9.6:libbrotli-0:1.0.9-7.el9_5.tuxcare.els1.x86_64"
        },
        "product_reference": "libbrotli-0:1.0.9-7.el9_5.tuxcare.els1.x86_64",
        "relates_to_product_reference": "AlmaLinux-9.6"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "brotli-0:1.0.9-7.el9_5.tuxcare.els1.i686 as a component of Rocky Linux 9.6",
          "product_id": "Rocky Linux-9.6:brotli-0:1.0.9-7.el9_5.tuxcare.els1.i686"
        },
        "product_reference": "brotli-0:1.0.9-7.el9_5.tuxcare.els1.i686",
        "relates_to_product_reference": "Rocky Linux-9.6"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "brotli-0:1.0.9-7.el9_5.tuxcare.els1.x86_64 as a component of Rocky Linux 9.6",
          "product_id": "Rocky Linux-9.6:brotli-0:1.0.9-7.el9_5.tuxcare.els1.x86_64"
        },
        "product_reference": "brotli-0:1.0.9-7.el9_5.tuxcare.els1.x86_64",
        "relates_to_product_reference": "Rocky Linux-9.6"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "python3-brotli-0:1.0.9-7.el9_5.tuxcare.els1.x86_64 as a component of Rocky Linux 9.6",
          "product_id": "Rocky Linux-9.6:python3-brotli-0:1.0.9-7.el9_5.tuxcare.els1.x86_64"
        },
        "product_reference": "python3-brotli-0:1.0.9-7.el9_5.tuxcare.els1.x86_64",
        "relates_to_product_reference": "Rocky Linux-9.6"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "brotli-devel-0:1.0.9-7.el9_5.tuxcare.els1.i686 as a component of Rocky Linux 9.6",
          "product_id": "Rocky Linux-9.6:brotli-devel-0:1.0.9-7.el9_5.tuxcare.els1.i686"
        },
        "product_reference": "brotli-devel-0:1.0.9-7.el9_5.tuxcare.els1.i686",
        "relates_to_product_reference": "Rocky Linux-9.6"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "brotli-devel-0:1.0.9-7.el9_5.tuxcare.els1.x86_64 as a component of Rocky Linux 9.6",
          "product_id": "Rocky Linux-9.6:brotli-devel-0:1.0.9-7.el9_5.tuxcare.els1.x86_64"
        },
        "product_reference": "brotli-devel-0:1.0.9-7.el9_5.tuxcare.els1.x86_64",
        "relates_to_product_reference": "Rocky Linux-9.6"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "libbrotli-0:1.0.9-7.el9_5.tuxcare.els1.i686 as a component of Rocky Linux 9.6",
          "product_id": "Rocky Linux-9.6:libbrotli-0:1.0.9-7.el9_5.tuxcare.els1.i686"
        },
        "product_reference": "libbrotli-0:1.0.9-7.el9_5.tuxcare.els1.i686",
        "relates_to_product_reference": "Rocky Linux-9.6"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "libbrotli-0:1.0.9-7.el9_5.tuxcare.els1.x86_64 as a component of Rocky Linux 9.6",
          "product_id": "Rocky Linux-9.6:libbrotli-0:1.0.9-7.el9_5.tuxcare.els1.x86_64"
        },
        "product_reference": "libbrotli-0:1.0.9-7.el9_5.tuxcare.els1.x86_64",
        "relates_to_product_reference": "Rocky Linux-9.6"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2025-6176",
      "cwe": {
        "id": "CWE-400",
        "name": "Uncontrolled Resource Consumption"
      },
      "notes": [
        {
          "category": "description",
          "text": "Scrapy versions up to 2.13.2 are vulnerable to a denial of service (DoS) attack due to a flaw in its brotli decompression implementation. The protection mechanism against decompression bombs fails to mitigate the brotli variant, allowing remote servers to crash clients with less than 80GB of available memory. This occurs because brotli can achieve extremely high compression ratios for zero-filled data, leading to excessive memory consumption during decompression.",
          "title": "Vulnerability description"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "AlmaLinux-9.6:brotli-0:1.0.9-7.el9_5.tuxcare.els1.i686",
          "AlmaLinux-9.6:brotli-0:1.0.9-7.el9_5.tuxcare.els1.x86_64",
          "AlmaLinux-9.6:brotli-devel-0:1.0.9-7.el9_5.tuxcare.els1.i686",
          "AlmaLinux-9.6:brotli-devel-0:1.0.9-7.el9_5.tuxcare.els1.x86_64",
          "AlmaLinux-9.6:libbrotli-0:1.0.9-7.el9_5.tuxcare.els1.i686",
          "AlmaLinux-9.6:libbrotli-0:1.0.9-7.el9_5.tuxcare.els1.x86_64",
          "AlmaLinux-9.6:python3-brotli-0:1.0.9-7.el9_5.tuxcare.els1.x86_64",
          "Rocky Linux-9.6:brotli-0:1.0.9-7.el9_5.tuxcare.els1.i686",
          "Rocky Linux-9.6:brotli-0:1.0.9-7.el9_5.tuxcare.els1.x86_64",
          "Rocky Linux-9.6:brotli-devel-0:1.0.9-7.el9_5.tuxcare.els1.i686",
          "Rocky Linux-9.6:brotli-devel-0:1.0.9-7.el9_5.tuxcare.els1.x86_64",
          "Rocky Linux-9.6:libbrotli-0:1.0.9-7.el9_5.tuxcare.els1.i686",
          "Rocky Linux-9.6:libbrotli-0:1.0.9-7.el9_5.tuxcare.els1.x86_64",
          "Rocky Linux-9.6:python3-brotli-0:1.0.9-7.el9_5.tuxcare.els1.x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els/cve/CVE-2025-6176"
        }
      ],
      "release_date": "2025-10-31T00:00:00Z",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-02-12T15:57:20.515298Z",
          "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1770911837",
          "product_ids": [
            "AlmaLinux-9.6:brotli-0:1.0.9-7.el9_5.tuxcare.els1.i686",
            "AlmaLinux-9.6:brotli-0:1.0.9-7.el9_5.tuxcare.els1.x86_64",
            "AlmaLinux-9.6:brotli-devel-0:1.0.9-7.el9_5.tuxcare.els1.i686",
            "AlmaLinux-9.6:brotli-devel-0:1.0.9-7.el9_5.tuxcare.els1.x86_64",
            "AlmaLinux-9.6:libbrotli-0:1.0.9-7.el9_5.tuxcare.els1.i686",
            "AlmaLinux-9.6:libbrotli-0:1.0.9-7.el9_5.tuxcare.els1.x86_64",
            "AlmaLinux-9.6:python3-brotli-0:1.0.9-7.el9_5.tuxcare.els1.x86_64",
            "Rocky Linux-9.6:brotli-0:1.0.9-7.el9_5.tuxcare.els1.i686",
            "Rocky Linux-9.6:brotli-0:1.0.9-7.el9_5.tuxcare.els1.x86_64",
            "Rocky Linux-9.6:brotli-devel-0:1.0.9-7.el9_5.tuxcare.els1.i686",
            "Rocky Linux-9.6:brotli-devel-0:1.0.9-7.el9_5.tuxcare.els1.x86_64",
            "Rocky Linux-9.6:libbrotli-0:1.0.9-7.el9_5.tuxcare.els1.i686",
            "Rocky Linux-9.6:libbrotli-0:1.0.9-7.el9_5.tuxcare.els1.x86_64",
            "Rocky Linux-9.6:python3-brotli-0:1.0.9-7.el9_5.tuxcare.els1.x86_64"
          ],
          "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1770911837"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "AlmaLinux-9.6:brotli-0:1.0.9-7.el9_5.tuxcare.els1.i686",
            "AlmaLinux-9.6:brotli-0:1.0.9-7.el9_5.tuxcare.els1.x86_64",
            "AlmaLinux-9.6:brotli-devel-0:1.0.9-7.el9_5.tuxcare.els1.i686",
            "AlmaLinux-9.6:brotli-devel-0:1.0.9-7.el9_5.tuxcare.els1.x86_64",
            "AlmaLinux-9.6:libbrotli-0:1.0.9-7.el9_5.tuxcare.els1.i686",
            "AlmaLinux-9.6:libbrotli-0:1.0.9-7.el9_5.tuxcare.els1.x86_64",
            "AlmaLinux-9.6:python3-brotli-0:1.0.9-7.el9_5.tuxcare.els1.x86_64",
            "Rocky Linux-9.6:brotli-0:1.0.9-7.el9_5.tuxcare.els1.i686",
            "Rocky Linux-9.6:brotli-0:1.0.9-7.el9_5.tuxcare.els1.x86_64",
            "Rocky Linux-9.6:brotli-devel-0:1.0.9-7.el9_5.tuxcare.els1.i686",
            "Rocky Linux-9.6:brotli-devel-0:1.0.9-7.el9_5.tuxcare.els1.x86_64",
            "Rocky Linux-9.6:libbrotli-0:1.0.9-7.el9_5.tuxcare.els1.i686",
            "Rocky Linux-9.6:libbrotli-0:1.0.9-7.el9_5.tuxcare.els1.x86_64",
            "Rocky Linux-9.6:python3-brotli-0:1.0.9-7.el9_5.tuxcare.els1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ]
    }
  ]
}