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        "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"
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        "text": "CVE-2026-86414: do not react to 401 responses during HTTP proxy CONNECT\n  (credentials leak)\n- CVE-2026-92389: verify the transfer direction in TFTP\n- CVE-2026-92388: stop overwriting the write callback in FTP wildcard listings",
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          "number": "1",
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  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-86414",
      "notes": [
        {
          "category": "description",
          "text": "An HTTP proxy can trick libcurl into sending the origin's credentials (Basic\npassword, or a Negotiate/Kerberos ticket) to the proxy itself, by answering\nthe `CONNECT` tunnel request with 401 `WWW-Authenticate:` instead of the\nexpected 407 `Proxy-Authenticate:`.",
          "title": "Vulnerability description"
        }
      ],
      "product_status": {
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          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els/cve/CVE-2026-86414"
        },
        {
          "category": "external",
          "summary": "https://curl.se/docs/CVE-2026-86414.html",
          "url": "https://curl.se/docs/CVE-2026-86414.html"
        },
        {
          "category": "external",
          "summary": "https://curl.se/docs/CVE-2026-86414.json",
          "url": "https://curl.se/docs/CVE-2026-86414.json"
        },
        {
          "category": "external",
          "summary": "https://hackerone.com/reports/3993566",
          "url": "https://hackerone.com/reports/3993566"
        }
      ],
      "release_date": "2026-10-20T21:17:00Z",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-10-28T04:57:45.873155Z",
          "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1793163464",
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        },
        {
          "category": "none_available",
          "date": "2026-10-20T21:17:00Z",
          "details": "Affected",
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        }
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    {
      "cve": "CVE-2026-92389",
      "notes": [
        {
          "category": "description",
          "text": "libcurl's TFTP state machine fails to validate state transitions against the\nrequested transfer direction, accepting opening server responses for both\nreads and writes interchangeably. A malicious TFTP server can respond to a\ndownload request in a way that forces the client into transmit mode, prompting\nlibcurl to consume and transmit data from the handle's persistent\n`CURLOPT_READDATA` pointer - including data remaining from unrelated prior\noperations, such as an HTTP POST request executed on a reused handle.",
          "title": "Vulnerability description"
        }
      ],
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        },
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          "category": "external",
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          "url": "https://curl.se/docs/CVE-2026-92389.html"
        },
        {
          "category": "external",
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          "url": "https://curl.se/docs/CVE-2026-92389.json"
        },
        {
          "category": "external",
          "summary": "https://hackerone.com/reports/4022568",
          "url": "https://hackerone.com/reports/4022568"
        }
      ],
      "release_date": "2026-10-20T21:17:00Z",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-10-28T04:57:45.873155Z",
          "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1793163464",
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        },
        {
          "category": "none_available",
          "date": "2026-10-20T21:17:00Z",
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          "details": "Important"
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    {
      "cve": "CVE-2026-92388",
      "notes": [
        {
          "category": "description",
          "text": "When an FTP wildcard `LIST` operation fails, libcurl omits the restoration\npath meant for successful listings, leaving the write callback set to the\ninternal listing parser and the write callback data pointing directly to the\neasy handle. Subsequent reuse of this handle triggers an immediate crash, and\ncloning it via `curl_easy_duphandle()` copies this corrupted state into the\nduplicate. If the original handle is subsequently freed, executing a transfer\non the cloned handle causes a heap use-after-free read against the dangling\nhandle reference; alternatively, reusing the original or cloned handle while\nchanging only  `CURLOPT_WRITEDATA` (and omitting `CURLOPT_WRITEFUNCTION`)\nresults in type confusion, forcing the internal parser to interpret incoming\nserver response bytes into memory at the application-supplied write data\npointer.",
          "title": "Vulnerability description"
        }
      ],
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        ],
        "known_affected": [
          "Red-Hat-7:curl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.x86_64",
          "Red-Hat-7:curl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els3.x86_64",
          "Red-Hat-7:curl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els5.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-0:7.29.0-59.0.3.el7_9.2.tuxcare.els3.i686",
          "Red-Hat-7:libcurl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els3.x86_64",
          "Red-Hat-7:libcurl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els5.i686",
          "Red-Hat-7:libcurl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els5.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",
          "Red-Hat-7:libcurl-devel-0:7.29.0-59.0.3.el7_9.2.tuxcare.els3.i686",
          "Red-Hat-7:libcurl-devel-0:7.29.0-59.0.3.el7_9.2.tuxcare.els3.x86_64",
          "Red-Hat-7:libcurl-devel-0:7.29.0-59.0.3.el7_9.2.tuxcare.els5.i686",
          "Red-Hat-7:libcurl-devel-0:7.29.0-59.0.3.el7_9.2.tuxcare.els5.x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els/cve/CVE-2026-92388"
        },
        {
          "category": "external",
          "summary": "https://curl.se/docs/CVE-2026-92388.html",
          "url": "https://curl.se/docs/CVE-2026-92388.html"
        },
        {
          "category": "external",
          "summary": "https://curl.se/docs/CVE-2026-92388.json",
          "url": "https://curl.se/docs/CVE-2026-92388.json"
        },
        {
          "category": "external",
          "summary": "https://hackerone.com/reports/4022070",
          "url": "https://hackerone.com/reports/4022070"
        }
      ],
      "release_date": "2026-10-20T21:17:00Z",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-10-28T04:57:45.873155Z",
          "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1793163464",
          "product_ids": [
            "Red-Hat-7:curl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els6.i686",
            "Red-Hat-7:curl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els6.x86_64",
            "Red-Hat-7:libcurl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els6.i686",
            "Red-Hat-7:libcurl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els6.x86_64",
            "Red-Hat-7:libcurl-devel-0:7.29.0-59.0.3.el7_9.2.tuxcare.els6.i686",
            "Red-Hat-7:libcurl-devel-0:7.29.0-59.0.3.el7_9.2.tuxcare.els6.x86_64"
          ],
          "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1793163464"
        },
        {
          "category": "none_available",
          "date": "2026-10-20T21:17:00Z",
          "details": "Affected",
          "product_ids": [
            "Red-Hat-7:curl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.x86_64",
            "Red-Hat-7:curl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els3.x86_64",
            "Red-Hat-7:curl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els5.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-0:7.29.0-59.0.3.el7_9.2.tuxcare.els3.i686",
            "Red-Hat-7:libcurl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els3.x86_64",
            "Red-Hat-7:libcurl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els5.i686",
            "Red-Hat-7:libcurl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els5.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",
            "Red-Hat-7:libcurl-devel-0:7.29.0-59.0.3.el7_9.2.tuxcare.els3.i686",
            "Red-Hat-7:libcurl-devel-0:7.29.0-59.0.3.el7_9.2.tuxcare.els3.x86_64",
            "Red-Hat-7:libcurl-devel-0:7.29.0-59.0.3.el7_9.2.tuxcare.els5.i686",
            "Red-Hat-7:libcurl-devel-0:7.29.0-59.0.3.el7_9.2.tuxcare.els5.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ]
    }
  ]
}