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bind: Fix of 6 CVEs

Type: advisorySources: OSV

- CVE-2026-11331: return from RPZ wildcard CNAME expansion when the resulting name is too long instead of continuing with an invalid name - CVE-2026-11721: reject RRSIG records whose Labels field is smaller than the signer's label count, and skip out-of-zone nodes in dnssec-signzone - CVE-2026-13321: reject NSEC RRsets containing a record whose Next Domain Name points outside the signer's zone - CVE-2026-10723: require the NSEC3 signer name to equal the zone apex derived from the NSEC3 owner name - CVE-2026-13204: only accept an NSEC/NSEC3 denial record that has a matching RRSIG, and propagate the failure instead of asserting - CVE-2026-11622: reference count cache RRset headers so superseded generations are reclaimed without waiting for the owning node to become unreferenced

Products
bind, bind-chroot, bind-devel, bind-dnssec-doc, bind-dnssec-utils, bind-doc, bind-libs, bind-license, bind-utils, python3-bind
Affected versions
Not specified
Fixed versions
32:9.16.23-31.el9_6.2.tuxcare.els5
CVEs
CVE-2026-10723, CVE-2026-11331, CVE-2026-11622, CVE-2026-11721, CVE-2026-13204, CVE-2026-13321
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 11:49 UTC · Revision 1

Source evidence

bind: Fix of 6 CVEs

core-osv · Original source

Published 31 Jul 2026, 09:23 UTC

- CVE-2026-11331: return from RPZ wildcard CNAME expansion when the resulting name is too long instead of continuing with an invalid name - CVE-2026-11721: reject RRSIG records whose Labels field is smaller than the signer's label count, and skip out-of-zone nodes in dnssec-signzone - CVE-2026-13321: reject NSEC RRsets containing a record whose Next Domain Name points outside the signer's zone - CVE-2026-10723: require the NSEC3 signer name to equal the zone apex derived from the NSEC3 owner name - CVE-2026-13204: only accept an NSEC/NSEC3 denial record that has a matching RRSIG, and propagate the failure instead of asserting - CVE-2026-11622: reference count cache RRset headers so superseded generations are reclaimed without waiting for the owning node to become unreferenced

osv:CLSA-2026-1785489780

bind

Fixed versions: 32:9.16.23-31.el9_6.2.tuxcare.els5

bind-chroot

Fixed versions: 32:9.16.23-31.el9_6.2.tuxcare.els5

bind-devel

Fixed versions: 32:9.16.23-31.el9_6.2.tuxcare.els5

bind-dnssec-doc

Fixed versions: 32:9.16.23-31.el9_6.2.tuxcare.els5

bind-dnssec-utils

Fixed versions: 32:9.16.23-31.el9_6.2.tuxcare.els5

bind-doc

Fixed versions: 32:9.16.23-31.el9_6.2.tuxcare.els5

bind-libs

Fixed versions: 32:9.16.23-31.el9_6.2.tuxcare.els5

bind-license

Fixed versions: 32:9.16.23-31.el9_6.2.tuxcare.els5

bind-utils

Fixed versions: 32:9.16.23-31.el9_6.2.tuxcare.els5

python3-bind

Fixed versions: 32:9.16.23-31.el9_6.2.tuxcare.els5

Complete source record
{
  "id": "1769660e56814d153cc4d54c10320bcd312ca771983e890447a7e30619cd97d7",
  "url": "https://osv.dev/vulnerability/CLSA-2026-1785489780",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "bind: Fix of 6 CVEs",
    "summary": "- CVE-2026-11331: return from RPZ wildcard CNAME expansion when the resulting name is too long instead of continuing with an invalid name - CVE-2026-11721: reject RRSIG records whose Labels field is smaller than the signer's label count, and skip out-of-zone nodes in dnssec-signzone - CVE-2026-13321: reject NSEC RRsets containing a record whose Next Domain Name points outside the signer's zone - CVE-2026-10723: require the NSEC3 signer name to equal the zone apex derived from the NSEC3 owner name - CVE-2026-13204: only accept an NSEC/NSEC3 denial record that has a matching RRSIG, and propagate the failure instead of asserting - CVE-2026-11622: reference count cache RRset headers so superseded generations are reclaimed without waiting for the owning node to become unreferenced",
    "evidence": "osv:CLSA-2026-1785489780",
    "products": [
      {
        "name": {
          "value": "bind",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "32:9.16.23-31.el9_6.2.tuxcare.els5",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "bind-chroot",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "32:9.16.23-31.el9_6.2.tuxcare.els5",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "bind-devel",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "32:9.16.23-31.el9_6.2.tuxcare.els5",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "bind-dnssec-doc",
          "evidence": "/affected/3/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "32:9.16.23-31.el9_6.2.tuxcare.els5",
            "evidence": "/affected/3/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "bind-dnssec-utils",
          "evidence": "/affected/4/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "32:9.16.23-31.el9_6.2.tuxcare.els5",
            "evidence": "/affected/4/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "bind-doc",
          "evidence": "/affected/5/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "32:9.16.23-31.el9_6.2.tuxcare.els5",
            "evidence": "/affected/5/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "bind-libs",
          "evidence": "/affected/6/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "32:9.16.23-31.el9_6.2.tuxcare.els5",
            "evidence": "/affected/6/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "bind-license",
          "evidence": "/affected/7/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "32:9.16.23-31.el9_6.2.tuxcare.els5",
            "evidence": "/affected/7/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "bind-utils",
          "evidence": "/affected/8/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "32:9.16.23-31.el9_6.2.tuxcare.els5",
            "evidence": "/affected/8/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "python3-bind",
          "evidence": "/affected/9/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "32:9.16.23-31.el9_6.2.tuxcare.els5",
            "evidence": "/affected/9/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CLSA-2026-1785489780",
      "aliases": [
        "CLSA-2026-1785489780"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "32:9.16.23-31.el9_6.2.tuxcare.els5"
                }
              ]
            }
          ],
          "package": {
            "name": "bind",
            "purl": "pkg:rpm/tuxcare/bind?distro=almalinux-9.6",
            "ecosystem": "TuxCare:AlmaLinux:9.6"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1785489780.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "32:9.16.23-31.el9_6.2.tuxcare.els5"
                }
              ]
            }
          ],
          "package": {
            "name": "bind-chroot",
            "purl": "pkg:rpm/tuxcare/bind-chroot?distro=almalinux-9.6",
            "ecosystem": "TuxCare:AlmaLinux:9.6"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1785489780.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "32:9.16.23-31.el9_6.2.tuxcare.els5"
                }
              ]
            }
          ],
          "package": {
            "name": "bind-devel",
            "purl": "pkg:rpm/tuxcare/bind-devel?distro=almalinux-9.6",
            "ecosystem": "TuxCare:AlmaLinux:9.6"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1785489780.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "32:9.16.23-31.el9_6.2.tuxcare.els5"
                }
              ]
            }
          ],
          "package": {
            "name": "bind-dnssec-doc",
            "purl": "pkg:rpm/tuxcare/bind-dnssec-doc?distro=almalinux-9.6",
            "ecosystem": "TuxCare:AlmaLinux:9.6"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1785489780.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "32:9.16.23-31.el9_6.2.tuxcare.els5"
                }
              ]
            }
          ],
          "package": {
            "name": "bind-dnssec-utils",
            "purl": "pkg:rpm/tuxcare/bind-dnssec-utils?distro=almalinux-9.6",
            "ecosystem": "TuxCare:AlmaLinux:9.6"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1785489780.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "32:9.16.23-31.el9_6.2.tuxcare.els5"
                }
              ]
            }
          ],
          "package": {
            "name": "bind-doc",
            "purl": "pkg:rpm/tuxcare/bind-doc?distro=almalinux-9.6",
            "ecosystem": "TuxCare:AlmaLinux:9.6"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1785489780.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "32:9.16.23-31.el9_6.2.tuxcare.els5"
                }
              ]
            }
          ],
          "package": {
            "name": "bind-libs",
            "purl": "pkg:rpm/tuxcare/bind-libs?distro=almalinux-9.6",
            "ecosystem": "TuxCare:AlmaLinux:9.6"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1785489780.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "32:9.16.23-31.el9_6.2.tuxcare.els5"
                }
              ]
            }
          ],
          "package": {
            "name": "bind-license",
            "purl": "pkg:rpm/tuxcare/bind-license?distro=almalinux-9.6",
            "ecosystem": "TuxCare:AlmaLinux:9.6"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1785489780.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "32:9.16.23-31.el9_6.2.tuxcare.els5"
                }
              ]
            }
          ],
          "package": {
            "name": "bind-utils",
            "purl": "pkg:rpm/tuxcare/bind-utils?distro=almalinux-9.6",
            "ecosystem": "TuxCare:AlmaLinux:9.6"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1785489780.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "32:9.16.23-31.el9_6.2.tuxcare.els5"
                }
              ]
            }
          ],
          "package": {
            "name": "python3-bind",
            "purl": "pkg:rpm/tuxcare/python3-bind?distro=almalinux-9.6",
            "ecosystem": "TuxCare:AlmaLinux:9.6"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1785489780.json"
          }
        }
      ],
      "modified": "2026-10-26T09:43:24.399223489Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-10723",
        "CVE-2026-11331",
        "CVE-2026-11622",
        "CVE-2026-11721",
        "CVE-2026-13204",
        "CVE-2026-13321"
      ],
      "references": [
        "https://errata.tuxcare.com/els_os/tuxcare9.6esu/CLSA-2026-1785489780.html",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-10723",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-11331",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-11622",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-11721",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-13204",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-13321"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-10723",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-11331",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-11622",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-11721",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-13204",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-13321",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 449894,
  "published_at": "2026-07-31T09:23:14+00:00"
}