{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*",
            "extracted_events": [
              {
                "introduced": "9.11.0"
              },
              {
                "last_affected": "9.16.50"
              },
              {
                "introduced": "9.18.0"
              },
              {
                "fixed": "9.18.47"
              },
              {
                "introduced": "9.20.0"
              },
              {
                "fixed": "9.20.21"
              },
              {
                "introduced": "9.21.0"
              },
              {
                "fixed": "9.21.20"
              }
            ],
            "source": "CPE_RANGE"
          },
          "events": [
            {
              "introduced": "1477c19dd9a347ee19a42dac227f299a4680506f"
            },
            {
              "last_affected": "acf2ba4a9337bced7e666b0460db4f58a4611eb8"
            },
            {
              "introduced": "8db45afa1affcb823e68afdeddedf93e136f5d3e"
            },
            {
              "fixed": "84c0d37e126c1ef36345a4f5b0ccd4faf1528c1e"
            },
            {
              "introduced": "14bbdfc7b9db0870a0b8941ca8812d9983fdba1a"
            },
            {
              "fixed": "12f97d4162d435940598de4870d0088b8e6d266c"
            },
            {
              "introduced": "b732da695eecc0526950e2c722cde0bf23e5a070"
            },
            {
              "fixed": "3e7037ceef40688d5b4eb4a55a9df80c7547dd9f"
            }
          ],
          "repo": "https://github.com/isc-projects/bind9",
          "type": "GIT"
        }
      ]
    },
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*",
            "extracted_events": [
              {
                "introduced": "9.11.0"
              },
              {
                "last_affected": "9.16.50"
              },
              {
                "introduced": "9.18.0"
              },
              {
                "fixed": "9.18.47"
              },
              {
                "introduced": "9.20.0"
              },
              {
                "fixed": "9.20.21"
              },
              {
                "introduced": "9.21.0"
              },
              {
                "fixed": "9.21.20"
              }
            ],
            "source": "CPE_RANGE"
          },
          "events": [
            {
              "introduced": "1477c19dd9a347ee19a42dac227f299a4680506f"
            },
            {
              "last_affected": "acf2ba4a9337bced7e666b0460db4f58a4611eb8"
            },
            {
              "introduced": "8db45afa1affcb823e68afdeddedf93e136f5d3e"
            },
            {
              "fixed": "84c0d37e126c1ef36345a4f5b0ccd4faf1528c1e"
            },
            {
              "introduced": "14bbdfc7b9db0870a0b8941ca8812d9983fdba1a"
            },
            {
              "fixed": "12f97d4162d435940598de4870d0088b8e6d266c"
            },
            {
              "introduced": "b732da695eecc0526950e2c722cde0bf23e5a070"
            },
            {
              "fixed": "3e7037ceef40688d5b4eb4a55a9df80c7547dd9f"
            }
          ],
          "repo": "https://gitlab.isc.org/isc-projects/bind9",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {},
  "details": "If a BIND resolver is performing DNSSEC validation and encounters a maliciously crafted zone, the resolver may consume excessive CPU. Authoritative-only servers are generally unaffected, although there are circumstances where authoritative servers may make recursive queries (see: https://kb.isc.org/docs/why-does-my-authoritative-server-make-recursive-queries).\nThis issue affects BIND 9 versions 9.11.0 through 9.16.50, 9.18.0 through 9.18.46, 9.20.0 through 9.20.20, 9.21.0 through 9.21.19, 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.46-S1, and 9.20.9-S1 through 9.20.20-S1.",
  "id": "CVE-2026-1519",
  "modified": "2026-07-12T03:54:35.005060900Z",
  "published": "2026-03-25T14:16:33.110Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2026-1519"
    },
    {
      "type": "WEB",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-1519.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:11371"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:11372"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:15890"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:16060"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:16064"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:24500"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:24851"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:24934"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:25083"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:25171"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:25214"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:29110"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:29863"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:34048"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:6935"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:7915"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:8075"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:8155"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:8312"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:8352"
    },
    {
      "type": "ADVISORY",
      "url": "https://kb.isc.org/docs/cve-2026-1519"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2451305"
    },
    {
      "type": "REPORT",
      "url": "https://lists.debian.org/debian-lts-announce/2026/04/msg00008.html"
    },
    {
      "type": "FIX",
      "url": "https://downloads.isc.org/isc/bind9/9.18.47"
    },
    {
      "type": "FIX",
      "url": "https://downloads.isc.org/isc/bind9/9.20.21"
    },
    {
      "type": "FIX",
      "url": "https://downloads.isc.org/isc/bind9/9.21.20"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}