msrc_cve-2021-26291
Vulnerability from csaf_microsoft
Published
2021-04-02 00:00
Modified
2025-05-14 00:00
Summary
block repositories using http by default

Notes

Additional Resources
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle
Disclaimer
The information provided in the Microsoft Knowledge Base is provided \"as is\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.


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{
  "document": {
    "category": "csaf_vex",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Public",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en-US",
    "notes": [
      {
        "category": "general",
        "text": "To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle",
        "title": "Additional Resources"
      },
      {
        "category": "legal_disclaimer",
        "text": "The information provided in the Microsoft Knowledge Base is provided \\\"as is\\\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.",
        "title": "Disclaimer"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "secure@microsoft.com",
      "name": "Microsoft Security Response Center",
      "namespace": "https://msrc.microsoft.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "CVE-2021-26291 block repositories using http by default - VEX",
        "url": "https://msrc.microsoft.com/csaf/vex/2021/msrc_cve-2021-26291.json"
      },
      {
        "category": "external",
        "summary": "Microsoft Support Lifecycle",
        "url": "https://support.microsoft.com/lifecycle"
      },
      {
        "category": "external",
        "summary": "Common Vulnerability Scoring System",
        "url": "https://www.first.org/cvss"
      }
    ],
    "title": "block repositories using http by default",
    "tracking": {
      "current_release_date": "2025-05-14T00:00:00.000Z",
      "generator": {
        "date": "2025-10-19T21:54:18.966Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
      },
      "id": "msrc_CVE-2021-26291",
      "initial_release_date": "2021-04-02T00:00:00.000Z",
      "revision_history": [
        {
          "date": "2021-05-05T00:00:00.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
        },
        {
          "date": "2025-05-14T00:00:00.000Z",
          "legacy_version": "1.1",
          "number": "2",
          "summary": "Added javapackages-bootstrap to CBL-Mariner 2.0\nAdded maven to CBL-Mariner 1.0"
        }
      ],
      "status": "final",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "1.0",
                "product": {
                  "name": "CBL Mariner 1.0",
                  "product_id": "16820"
                }
              },
              {
                "category": "product_version",
                "name": "2.0",
                "product": {
                  "name": "CBL Mariner 2.0",
                  "product_id": "17086"
                }
              }
            ],
            "category": "product_name",
            "name": "Azure Linux"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003ccm1 maven 3.8.1-1",
                "product": {
                  "name": "\u003ccm1 maven 3.8.1-1",
                  "product_id": "2"
                }
              },
              {
                "category": "product_version",
                "name": "cm1 maven 3.8.1-1",
                "product": {
                  "name": "cm1 maven 3.8.1-1",
                  "product_id": "19060"
                }
              }
            ],
            "category": "product_name",
            "name": "maven"
          },
          {
            "category": "product_name",
            "name": "cbl2 javapackages-bootstrap 1.5.0-6",
            "product": {
              "name": "cbl2 javapackages-bootstrap 1.5.0-6",
              "product_id": "1"
            }
          }
        ],
        "category": "vendor",
        "name": "Microsoft"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "\u003ccm1 maven 3.8.1-1 as a component of CBL Mariner 1.0",
          "product_id": "16820-2"
        },
        "product_reference": "2",
        "relates_to_product_reference": "16820"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "cm1 maven 3.8.1-1 as a component of CBL Mariner 1.0",
          "product_id": "19060-16820"
        },
        "product_reference": "19060",
        "relates_to_product_reference": "16820"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "cbl2 javapackages-bootstrap 1.5.0-6 as a component of CBL Mariner 2.0",
          "product_id": "17086-1"
        },
        "product_reference": "1",
        "relates_to_product_reference": "17086"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2021-26291",
      "cwe": {
        "id": "CWE-346",
        "name": "Origin Validation Error"
      },
      "flags": [
        {
          "label": "component_not_present",
          "product_ids": [
            "17086-1"
          ]
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "apache",
          "title": "Assigning CNA"
        }
      ],
      "product_status": {
        "fixed": [
          "19060-16820"
        ],
        "known_affected": [
          "16820-2"
        ],
        "known_not_affected": [
          "17086-1"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2021-26291 block repositories using http by default - VEX",
          "url": "https://msrc.microsoft.com/csaf/vex/2021/msrc_cve-2021-26291.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2021-05-05T00:00:00.000Z",
          "details": "3.8.1-1:Security Update:https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade",
          "product_ids": [
            "16820-2"
          ],
          "url": "https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 9.1,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "environmentalsScore": 0.0,
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "temporalScore": 9.1,
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "products": [
            "16820-2"
          ]
        }
      ],
      "title": "block repositories using http by default"
    }
  ]
}


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