{
  "cveId": "CVE-2021-22876",
  "url": "https://patchblox.com/security/cve/CVE-2021-22876",
  "summary": "CVE-2021-22876 is fixed in 7 products on 1 platform, first by curl 7.58.0-2ubuntu3.13, released March 30, 2021. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "curl: The curl packages provide the libcurl library and the curl utility for downloading files from servers using various p...",
  "description": "The curl packages provide the libcurl library and the curl utility for downloading files from servers using various protocols, including HTTP, FTP, and LDAP.\n\nSecurity Fix(es):\n\n* curl: Leak of authentication credentials in URL via automatic Referer (CVE-2021-22876)\n\n* curl: TELNET stack contents disclosure (CVE-2021-22898)\n\n* curl: Incorrect fix for CVE-2021-22898 TELNET stack contents disclosure (CVE-2021-22925)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the Red Hat Enterprise Linux 8.5 Release Notes linked from the References section.",
  "published": "2021-03-30T23:00:00Z",
  "severity": "Moderate",
  "cvss": 5.3,
  "cvssVector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
  "epss": 0.05301,
  "epssPercentile": 0.92633,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "curl",
      "release": "RHEL 8",
      "fixedVersion": "0:7.61.1-22.el8",
      "fix": "RHSA-2021:4511",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2021-4511",
      "released": "2021-11-09T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "curl",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "7.58.0-2ubuntu3.13",
      "fix": "curl 7.58.0-2ubuntu3.13",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-curl-7.58.0-2ubuntu3.13",
      "released": "2021-03-30T23:00:00Z"
    },
    {
      "platform": "linux",
      "product": "curl",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "7.68.0-1ubuntu2.5",
      "fix": "curl 7.68.0-1ubuntu2.5",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-curl-7.68.0-1ubuntu2.5",
      "released": "2021-03-30T23:00:00Z"
    },
    {
      "platform": "linux",
      "product": "curl",
      "release": "almalinux 8",
      "fixedVersion": "7.61.1-22.el8",
      "fix": "ALSA-2021:4511",
      "url": "https://patchblox.com/security/fix/linux/alsa-2021-4511",
      "released": "2021-11-09T09:38:13Z"
    },
    {
      "platform": "linux",
      "product": "curl",
      "release": "ol 8",
      "fixedVersion": "0:7.61.1-22.el8",
      "fix": "ELSA-2021-4511",
      "url": "https://patchblox.com/security/fix/linux/elsa-2021-4511",
      "released": "2021-11-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "curl",
      "release": "rocky 8",
      "fixedVersion": "0:7.61.1-22.el8",
      "fix": "RLSA-2021:4511",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2021-4511",
      "released": "2021-11-09T09:38:13Z"
    },
    {
      "platform": "linux",
      "product": "libcurl",
      "release": "RHEL 8",
      "fixedVersion": "0:7.61.1-22.el8",
      "fix": "RHSA-2021:4511",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2021-4511",
      "released": "2021-11-09T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libcurl",
      "release": "almalinux 8",
      "fixedVersion": "7.61.1-22.el8",
      "fix": "ALSA-2021:4511",
      "url": "https://patchblox.com/security/fix/linux/alsa-2021-4511",
      "released": "2021-11-09T09:38:13Z"
    },
    {
      "platform": "linux",
      "product": "libcurl",
      "release": "ol 8",
      "fixedVersion": "0:7.61.1-22.el8",
      "fix": "ELSA-2021-4511",
      "url": "https://patchblox.com/security/fix/linux/elsa-2021-4511",
      "released": "2021-11-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libcurl-devel",
      "release": "RHEL 8",
      "fixedVersion": "0:7.61.1-22.el8",
      "fix": "RHSA-2021:4511",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2021-4511",
      "released": "2021-11-09T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libcurl-devel",
      "release": "almalinux 8",
      "fixedVersion": "7.61.1-22.el8",
      "fix": "ALSA-2021:4511",
      "url": "https://patchblox.com/security/fix/linux/alsa-2021-4511",
      "released": "2021-11-09T09:38:13Z"
    },
    {
      "platform": "linux",
      "product": "libcurl-devel",
      "release": "ol 8",
      "fixedVersion": "0:7.61.1-22.el8",
      "fix": "ELSA-2021-4511",
      "url": "https://patchblox.com/security/fix/linux/elsa-2021-4511",
      "released": "2021-11-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libcurl-minimal",
      "release": "RHEL 8",
      "fixedVersion": "0:7.61.1-22.el8",
      "fix": "RHSA-2021:4511",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2021-4511",
      "released": "2021-11-09T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libcurl-minimal",
      "release": "almalinux 8",
      "fixedVersion": "7.61.1-22.el8",
      "fix": "ALSA-2021:4511",
      "url": "https://patchblox.com/security/fix/linux/alsa-2021-4511",
      "released": "2021-11-09T09:38:13Z"
    },
    {
      "platform": "linux",
      "product": "libcurl-minimal",
      "release": "ol 8",
      "fixedVersion": "0:7.61.1-22.el8",
      "fix": "ELSA-2021-4511",
      "url": "https://patchblox.com/security/fix/linux/elsa-2021-4511",
      "released": "2021-11-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libcurl3-gnutls",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "7.58.0-2ubuntu3.13",
      "fix": "libcurl3-gnutls 7.58.0-2ubuntu3.13",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libcurl3-gnutls-7.58.0-2ubuntu3.13",
      "released": "2021-03-30T23:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libcurl3-gnutls",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "7.68.0-1ubuntu2.5",
      "fix": "libcurl3-gnutls 7.68.0-1ubuntu2.5",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libcurl3-gnutls-7.68.0-1ubuntu2.5",
      "released": "2021-03-30T23:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libcurl3-nss",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "7.58.0-2ubuntu3.13",
      "fix": "libcurl3-nss 7.58.0-2ubuntu3.13",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libcurl3-nss-7.58.0-2ubuntu3.13",
      "released": "2021-03-30T23:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libcurl3-nss",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "7.68.0-1ubuntu2.5",
      "fix": "libcurl3-nss 7.68.0-1ubuntu2.5",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libcurl3-nss-7.68.0-1ubuntu2.5",
      "released": "2021-03-30T23:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libcurl4",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "7.58.0-2ubuntu3.13",
      "fix": "libcurl4 7.58.0-2ubuntu3.13",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libcurl4-7.58.0-2ubuntu3.13",
      "released": "2021-03-30T23:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libcurl4",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "7.68.0-1ubuntu2.5",
      "fix": "libcurl4 7.68.0-1ubuntu2.5",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libcurl4-7.68.0-1ubuntu2.5",
      "released": "2021-03-30T23:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}