{
  "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-2023-40225: Fix forward empty Content-Length headers issue",
        "title": "Details"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "https://tuxcare.com/contact/",
      "name": "TuxCare",
      "namespace": "https://tuxcare.com/"
    },
    "references": [
      {
        "category": "self",
        "summary": "https://cve.tuxcare.com/els/releases/CLSA-2025:1736503350",
        "url": "https://cve.tuxcare.com/els/releases/CLSA-2025:1736503350"
      },
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.tuxcare.com/csaf/v2/els_os/almalinux9.2esu/advisories/2025/clsa-2025_1736503350.json"
      }
    ],
    "tracking": {
      "current_release_date": "2026-05-12T21:41:52Z",
      "generator": {
        "date": "2026-05-12T21:41:52Z",
        "engine": {
          "name": "pyCSAF"
        }
      },
      "id": "CLSA-2025:1736503350",
      "initial_release_date": "2025-01-10T05:02:33Z",
      "revision_history": [
        {
          "date": "2025-01-10T05:02:33Z",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2026-05-12T21:41:52Z",
          "number": "2",
          "summary": "Official Publication"
        }
      ],
      "status": "final",
      "version": "2"
    },
    "title": "haproxy: Fix of CVE-2023-40225"
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "AlmaLinux 9.2",
                "product": {
                  "name": "AlmaLinux 9.2",
                  "product_id": "AlmaLinux-9.2",
                  "product_identification_helper": {
                    "cpe": "cpe:2.3:o:almalinux:almalinux:9.2:*:*:*:*:*:*:*"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "AlmaLinux"
          }
        ],
        "category": "vendor",
        "name": "AlmaLinux OS Foundation"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "haproxy-0:2.4.17-6.el9.tuxcare.els3.x86_64",
                "product": {
                  "name": "haproxy-0:2.4.17-6.el9.tuxcare.els3.x86_64",
                  "product_id": "haproxy-0:2.4.17-6.el9.tuxcare.els3.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/tuxcare/haproxy@2.4.17-6.el9.tuxcare.els3?arch=x86_64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "haproxy-0:2.4.17-6.el9.tuxcare.els1.x86_64",
                "product": {
                  "name": "haproxy-0:2.4.17-6.el9.tuxcare.els1.x86_64",
                  "product_id": "haproxy-0:2.4.17-6.el9.tuxcare.els1.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/tuxcare/haproxy@2.4.17-6.el9.tuxcare.els1?arch=x86_64"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "x86_64"
          }
        ],
        "category": "vendor",
        "name": "TuxCare"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "haproxy-0:2.4.17-6.el9.tuxcare.els3.x86_64 as a component of AlmaLinux 9.2",
          "product_id": "AlmaLinux-9.2:haproxy-0:2.4.17-6.el9.tuxcare.els3.x86_64"
        },
        "product_reference": "haproxy-0:2.4.17-6.el9.tuxcare.els3.x86_64",
        "relates_to_product_reference": "AlmaLinux-9.2"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "haproxy-0:2.4.17-6.el9.tuxcare.els1.x86_64 as a component of AlmaLinux 9.2",
          "product_id": "AlmaLinux-9.2:haproxy-0:2.4.17-6.el9.tuxcare.els1.x86_64"
        },
        "product_reference": "haproxy-0:2.4.17-6.el9.tuxcare.els1.x86_64",
        "relates_to_product_reference": "AlmaLinux-9.2"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2023-40225",
      "cwe": {
        "id": "CWE-444",
        "name": "Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')"
      },
      "notes": [
        {
          "category": "description",
          "text": "HAProxy through 2.0.32, 2.1.x and 2.2.x through 2.2.30, 2.3.x and 2.4.x through 2.4.23, 2.5.x and 2.6.x before 2.6.15, 2.7.x before 2.7.10, and 2.8.x before 2.8.2 forwards empty Content-Length headers, violating RFC 9110 section 8.6. In uncommon cases, an HTTP/1 server behind HAProxy may interpret the payload as an extra request.",
          "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-9.2:haproxy-0:2.4.17-6.el9.tuxcare.els3.x86_64"
        ],
        "known_affected": [
          "AlmaLinux-9.2:haproxy-0:2.4.17-6.el9.tuxcare.els1.x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els/cve/CVE-2023-40225"
        },
        {
          "category": "external",
          "summary": "https://cwe.mitre.org/data/definitions/436.html",
          "url": "https://cwe.mitre.org/data/definitions/436.html"
        },
        {
          "category": "external",
          "summary": "https://github.com/haproxy/haproxy/commit/6492f1f29d738457ea9f382aca54537f35f9d856",
          "url": "https://github.com/haproxy/haproxy/commit/6492f1f29d738457ea9f382aca54537f35f9d856"
        },
        {
          "category": "external",
          "summary": "https://github.com/haproxy/haproxy/issues/2237",
          "url": "https://github.com/haproxy/haproxy/issues/2237"
        },
        {
          "category": "external",
          "summary": "https://www.haproxy.org/download/2.6/src/CHANGELOG",
          "url": "https://www.haproxy.org/download/2.6/src/CHANGELOG"
        },
        {
          "category": "external",
          "summary": "https://www.haproxy.org/download/2.7/src/CHANGELOG",
          "url": "https://www.haproxy.org/download/2.7/src/CHANGELOG"
        },
        {
          "category": "external",
          "summary": "https://www.haproxy.org/download/2.8/src/CHANGELOG",
          "url": "https://www.haproxy.org/download/2.8/src/CHANGELOG"
        }
      ],
      "release_date": "2023-08-10T21:15:00Z",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2025-01-10T05:02:33Z",
          "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2025:1736503350",
          "product_ids": [
            "AlmaLinux-9.2:haproxy-0:2.4.17-6.el9.tuxcare.els3.x86_64"
          ],
          "url": "https://cve.tuxcare.com/els/releases/CLSA-2025:1736503350"
        },
        {
          "category": "none_available",
          "date": "2023-08-10T21:15:00Z",
          "details": "Affected",
          "product_ids": [
            "AlmaLinux-9.2:haproxy-0:2.4.17-6.el9.tuxcare.els1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.2,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N",
            "version": "3.1"
          },
          "products": [
            "AlmaLinux-9.2:haproxy-0:2.4.17-6.el9.tuxcare.els3.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ]
    },
    {
      "cve": "CVE-2023-45539",
      "notes": [
        {
          "category": "description",
          "text": "HAProxy before 2.8.2 accepts # as part of the URI component, which might allow remote attackers to obtain sensitive information or have unspecified other impact upon misinterpretation of a path_end rule, such as routing index.html#.png to a static server.",
          "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-9.2:haproxy-0:2.4.17-6.el9.tuxcare.els3.x86_64"
        ],
        "known_affected": [
          "AlmaLinux-9.2:haproxy-0:2.4.17-6.el9.tuxcare.els1.x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els/cve/CVE-2023-45539"
        },
        {
          "category": "external",
          "summary": "https://git.haproxy.org/?p=haproxy.git%3Ba=commit%3Bh=2eab6d354322932cfec2ed54de261e4347eca9a6",
          "url": "https://git.haproxy.org/?p=haproxy.git%3Ba=commit%3Bh=2eab6d354322932cfec2ed54de261e4347eca9a6"
        },
        {
          "category": "external",
          "summary": "https://lists.debian.org/debian-lts-announce/2023/12/msg00010.html",
          "url": "https://lists.debian.org/debian-lts-announce/2023/12/msg00010.html"
        },
        {
          "category": "external",
          "summary": "https://lists.w3.org/Archives/Public/ietf-http-wg/2023JulSep/0070.html",
          "url": "https://lists.w3.org/Archives/Public/ietf-http-wg/2023JulSep/0070.html"
        },
        {
          "category": "external",
          "summary": "https://www.mail-archive.com/haproxy%40formilux.org/msg43861.html",
          "url": "https://www.mail-archive.com/haproxy%40formilux.org/msg43861.html"
        }
      ],
      "release_date": "2023-11-28T20:15:00Z",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2025-01-10T05:02:33Z",
          "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2025:1736503350",
          "product_ids": [
            "AlmaLinux-9.2:haproxy-0:2.4.17-6.el9.tuxcare.els3.x86_64"
          ],
          "url": "https://cve.tuxcare.com/els/releases/CLSA-2025:1736503350"
        },
        {
          "category": "none_available",
          "date": "2023-11-28T20:15:00Z",
          "details": "Affected",
          "product_ids": [
            "AlmaLinux-9.2:haproxy-0:2.4.17-6.el9.tuxcare.els1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 8.2,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N",
            "version": "3.1"
          },
          "products": [
            "AlmaLinux-9.2:haproxy-0:2.4.17-6.el9.tuxcare.els3.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ]
    }
  ]
}