{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.4.2"
              },
              {
                "introduced": "0"
              },
              {
                "last_affected": "1.5.0"
              },
              {
                "introduced": "0"
              },
              {
                "last_affected": "1.5.1"
              },
              {
                "introduced": "0"
              },
              {
                "last_affected": "1.6.0"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "612ec2c63a68b4d5b60d1d864e6703fde1c2a023"
            },
            {
              "introduced": "0"
            },
            {
              "last_affected": "f7e3872b0359c6095f8eeaefe408cb7dcef5bb83"
            },
            {
              "introduced": "0"
            },
            {
              "last_affected": "1b27db1c406b3460a252aea2ee7c75f3a430e50c"
            },
            {
              "introduced": "0"
            },
            {
              "last_affected": "c7df5eadc075adcf525ea091f65786aaffb9b072"
            }
          ],
          "repo": "https://github.com/apache/mesos",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "Apache Mesos can be configured to require authentication to call the Executor HTTP API using JSON Web Token (JWT). In Apache Mesos versions pre-1.4.2, 1.5.0, 1.5.1, 1.6.0 the comparison of the generated HMAC value against the provided signature in the JWT implementation used is vulnerable to a timing attack because instead of a constant-time string comparison routine a standard `==` operator has been used. A malicious actor can therefore abuse the timing difference of when the JWT validation function returns to reveal the correct HMAC value.",
  "id": "CVE-2018-8023",
  "modified": "2026-03-13T21:50:14.997392286Z",
  "published": "2018-09-21T13:29:01.140Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/9b9d3f6bd09f3ebd2284b82077033bdc71da550a1c4c010c2494acc3%40%3Cdev.mesos.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/r0dd7ff197b2e3bdd80a0326587ca3d0c22e10d1dba17c769d6da7d7a%40%3Cuser.flink.apache.org%3E"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}