{
  "document": {
    "aggregate_severity": {
      "text": "High"
    },
    "category": "csaf_vex",
    "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"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "https://tuxcare.com/contact/",
      "name": "TuxCare",
      "namespace": "https://tuxcare.com/"
    },
    "references": [
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        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.tuxcare.com/csaf/v2/els_os/rhel7els/vex/2026/cve-2026-6276-els_os-rhel7els.json"
      }
    ],
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      "generator": {
        "date": "2026-07-29T04:26:37Z",
        "engine": {
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        }
      },
      "id": "CVE-2026-6276-ELS_OS-RHEL7ELS",
      "initial_release_date": "2026-05-13T13:01:00Z",
      "revision_history": [
        {
          "date": "2026-05-13T13:01:00Z",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2026-07-28T15:52:04Z",
          "number": "2",
          "summary": "Official Publication"
        },
        {
          "date": "2026-07-29T04:26:37Z",
          "number": "3",
          "summary": "Update document"
        }
      ],
      "status": "final",
      "version": "3"
    },
    "title": "Security update on CVE-2026-6276"
  },
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        },
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        },
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  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-6276",
      "cwe": {
        "id": "CWE-319",
        "name": "Cleartext Transmission of Sensitive Information"
      },
      "notes": [
        {
          "category": "description",
          "text": "Using libcurl, when a custom `Host:` header is first set for an HTTP request\nand a second request is subsequently done using the same *easy handle* but\nwithout the custom `Host:` header set, the second request would use stale\ninformation and pass on cookies meant for the first host in the second\nrequest. Leak them.",
          "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"
        },
        {
          "category": "other",
          "text": "TuxCare has assessed that this vulnerability does not impact any currently supported TuxCare products. This evaluation may change as new information becomes available. For additional details regarding this vulnerability and affected products, refer to the provided references.",
          "title": "Statement"
        }
      ],
      "product_status": {
        "known_not_affected": [
          "Red-Hat-7:curl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.x86_64",
          "Red-Hat-7:libcurl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.i686",
          "Red-Hat-7:libcurl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.x86_64",
          "Red-Hat-7:libcurl-devel-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.i686",
          "Red-Hat-7:libcurl-devel-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els/cve/CVE-2026-6276"
        },
        {
          "category": "external",
          "summary": "https://curl.se/docs/CVE-2026-6276.html",
          "url": "https://curl.se/docs/CVE-2026-6276.html"
        },
        {
          "category": "external",
          "summary": "https://curl.se/docs/CVE-2026-6276.json",
          "url": "https://curl.se/docs/CVE-2026-6276.json"
        },
        {
          "category": "external",
          "summary": "https://hackerone.com/reports/3671818",
          "url": "https://hackerone.com/reports/3671818"
        },
        {
          "category": "external",
          "summary": "http://www.openwall.com/lists/oss-security/2026/04/29/13",
          "url": "http://www.openwall.com/lists/oss-security/2026/04/29/13"
        }
      ],
      "release_date": "2026-05-13T13:01:00Z",
      "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": [
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            "Red-Hat-7:libcurl-devel-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.i686",
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          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        },
        {
          "category": "impact",
          "date": "2026-07-29T02:10:54.674731Z",
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}