{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "0a3a809089eb1d4a0a2fd0c16b520d603988c859"
            },
            {
              "fixed": "8be6ed64966da48b6c4726918f106c18742a5125"
            },
            {
              "fixed": "a269cbdc442f8658bca35383e34b9d0b0ff95a1c"
            },
            {
              "fixed": "080b0e210088296dd50d6637c06c1db14246adfe"
            },
            {
              "fixed": "67edfec516d30d3e62925c397be4a1e5185802fc"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.78"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.19"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "6.19.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43384.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/tcp-ao: Fix MAC comparison to be constant-time\n\nTo prevent timing attacks, MACs need to be compared in constant\ntime.  Use the appropriate helper function for this.",
  "id": "CVE-2026-43384",
  "modified": "2026-07-08T05:38:55.384369092Z",
  "published": "2026-05-08T14:21:31.355Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/080b0e210088296dd50d6637c06c1db14246adfe"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/67edfec516d30d3e62925c397be4a1e5185802fc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8be6ed64966da48b6c4726918f106c18742a5125"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a269cbdc442f8658bca35383e34b9d0b0ff95a1c"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43384.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43384"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "net/tcp-ao: Fix MAC comparison to be constant-time"
}