Vulnerabilities in pkg:npm/@ckeditor/ckeditor5-font

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-3rh3-wfr4-76mj",
  "modified" : "2021-04-30T17:30:42Z",
  "published" : "2021-04-06T17:28:41Z",
  "aliases" : [ "CVE-2021-21391" ],
  "summary" : "Regular expression Denial of Service in multiple packages",
  "details" : "\n### Impact\nA regular expression denial of service (ReDoS) vulnerability has been discovered in multiple CKEditor 5 packages. The vulnerability allowed to abuse particular regular expressions, which could cause a significant performance drop resulting in a browser tab freeze. It affects all users using the CKEditor 5 packages listed above at version <= 26.0.0.\n\n### Patches\nThe problem has been recognized and patched. The fix will be available in version 27.0.0.\n\n### For more information\nEmail us at security@cksource.com if you have any questions or comments about this advisory.\n\n### Acknowledgements\nThe CKEditor 5 team would like to thank Yeting Li for recognizing and reporting these vulnerabilities.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "@ckeditor/ckeditor5-engine"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "27.0.0"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 26.0.0"
    }
  }, {
    "package" : {
      "ecosystem" : "npm",
      "name" : "@ckeditor/ckeditor5-font"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "27.0.0"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 26.0.0"
    }
  }, {
    "package" : {
      "ecosystem" : "npm",
      "name" : "@ckeditor/ckeditor5-image"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "27.0.0"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 26.0.0"
    }
  }, {
    "package" : {
      "ecosystem" : "npm",
      "name" : "@ckeditor/ckeditor5-list"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "27.0.0"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 26.0.0"
    }
  }, {
    "package" : {
      "ecosystem" : "npm",
      "name" : "@ckeditor/ckeditor5-markdown-gfm"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "27.0.0"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 26.0.0"
    }
  }, {
    "package" : {
      "ecosystem" : "npm",
      "name" : "@ckeditor/ckeditor5-media-embed"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "27.0.0"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 26.0.0"
    }
  }, {
    "package" : {
      "ecosystem" : "npm",
      "name" : "@ckeditor/ckeditor5-paste-from-office"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "27.0.0"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 26.0.0"
    }
  }, {
    "package" : {
      "ecosystem" : "npm",
      "name" : "@ckeditor/ckeditor5-widget"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "27.0.0"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 26.0.0"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/ckeditor/ckeditor5/security/advisories/GHSA-3rh3-wfr4-76mj"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-21391"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/ckeditor/ckeditor5/releases/tag/v27.0.0"
  }, {
    "type" : "WEB",
    "url" : "https://www.npmjs.com/package/@ckeditor/ckeditor5-engine"
  }, {
    "type" : "WEB",
    "url" : "https://www.npmjs.com/package/@ckeditor/ckeditor5-font"
  }, {
    "type" : "WEB",
    "url" : "https://www.npmjs.com/package/@ckeditor/ckeditor5-image"
  }, {
    "type" : "WEB",
    "url" : "https://www.npmjs.com/package/@ckeditor/ckeditor5-list"
  }, {
    "type" : "WEB",
    "url" : "https://www.npmjs.com/package/@ckeditor/ckeditor5-markdown-gfm"
  }, {
    "type" : "WEB",
    "url" : "https://www.npmjs.com/package/@ckeditor/ckeditor5-media-embed"
  }, {
    "type" : "WEB",
    "url" : "https://www.npmjs.com/package/@ckeditor/ckeditor5-paste-from-office"
  }, {
    "type" : "WEB",
    "url" : "https://www.npmjs.com/package/@ckeditor/ckeditor5-widget"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-400" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-03-31T18:37:46Z",
    "nvd_published_at" : "2021-04-29T01:15:00Z"
  }
}