UnratedFix available

DEBIAN-CVE-2026-10822

Type: advisorySource: OSV1 source record

If BIND encounters a particular invalid data structure in a DNS record, it will accept the invalid data, and may subsequently abort and exit. BIND will first need to store a DNS record for a key (KEY, DNSKEY, etc.). That key must specify a PRIVATEDNS algorithm (253), and in the algorithm identifier, improperly give a length longer than the actual identifier data. The invalid identifier will be stored. If BIND later needs to render that record to text, it will use the invalid length during processing, leading to a consistency check failing. This issue affects BIND 9 versions 9.18.0 through 9.18.50, 9.20.0 through 9.20.24, 9.21.0 through 9.21.23, 9.18.11-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.24-S1.

Announced 22 Jul 2026Source revision 1

Original source ↗

DEBIAN-CVE-2026-10822

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:DEBIAN-CVE-2026-10822

bind9

Source reference: /affected/0/package/name

Affected versions: 1:9.18.12-1
Source reference: /affected/0/versions
1:9.18.13-1
Source reference: /affected/0/versions
1:9.18.16-1
Source reference: /affected/0/versions
1:9.18.16-1~deb12u1
Source reference: /affected/0/versions
1:9.18.16-1~deb12u1~bpo11+1
Source reference: /affected/0/versions
1:9.18.19-1~deb12u1
Source reference: /affected/0/versions
1:9.18.19-1~deb12u1~bpo11+1
Source reference: /affected/0/versions
1:9.18.24-1
Source reference: /affected/0/versions
1:9.18.24-1~bpo11+1
Source reference: /affected/0/versions
1:9.18.28-1~deb12u1
Source reference: /affected/0/versions
1:9.18.28-1~deb12u2
Source reference: /affected/0/versions
1:9.18.33-1~deb12u2
Source reference: /affected/0/versions
1:9.18.41-1~deb12u1
Source reference: /affected/0/versions
1:9.18.44-1~deb12u1
Source reference: /affected/0/versions
1:9.18.47-1~deb12u1
Source reference: /affected/0/versions
1:9.18.49-1~deb12u1
Source reference: /affected/0/versions
Fixed versions: 1:9.18.49-1~deb12u2
Source reference: /affected/0/ranges
Prerequisites: Not stated in this record

bind9

Source reference: /affected/1/package/name

Affected versions: 1:9.20.11-4
Source reference: /affected/1/versions
1:9.20.15-1
Source reference: /affected/1/versions
1:9.20.15-1~deb13u1
Source reference: /affected/1/versions
1:9.20.15-1~deb13u1~bpo12+1
Source reference: /affected/1/versions
1:9.20.15-2
Source reference: /affected/1/versions
1:9.20.18-1
Source reference: /affected/1/versions
1:9.20.18-1~deb13u1
Source reference: /affected/1/versions
1:9.20.18-1~deb13u1~bpo12+1
Source reference: /affected/1/versions
1:9.20.19-1
Source reference: /affected/1/versions
1:9.20.19-1~bpo12+1
Source reference: /affected/1/versions
1:9.20.20-1
Source reference: /affected/1/versions
1:9.20.20-1~bpo12+1
Source reference: /affected/1/versions
1:9.20.21-1
Source reference: /affected/1/versions
1:9.20.21-1~deb13u1
Source reference: /affected/1/versions
1:9.20.21-1~deb13u1~bpo12+1
Source reference: /affected/1/versions
1:9.20.22-1
Source reference: /affected/1/versions
1:9.20.23-1
Source reference: /affected/1/versions
1:9.20.23-1~deb13u1
Source reference: /affected/1/versions
1:9.20.23-1~deb13u1~bpo12+1
Source reference: /affected/1/versions
1:9.20.24-1
Source reference: /affected/1/versions
1:9.20.26-1~deb13u1~bpo12+1
Source reference: /affected/1/versions
Fixed versions: 1:9.20.26-1~deb13u1
Source reference: /affected/1/ranges
Prerequisites: Not stated in this record

bind9

Source reference: /affected/2/package/name

Affected versions: 1:9.20.11-4
Source reference: /affected/2/versions
1:9.20.15-1
Source reference: /affected/2/versions
1:9.20.15-1~deb13u1
Source reference: /affected/2/versions
1:9.20.15-1~deb13u1~bpo12+1
Source reference: /affected/2/versions
1:9.20.15-2
Source reference: /affected/2/versions
1:9.20.18-1
Source reference: /affected/2/versions
1:9.20.18-1~deb13u1
Source reference: /affected/2/versions
1:9.20.18-1~deb13u1~bpo12+1
Source reference: /affected/2/versions
1:9.20.19-1
Source reference: /affected/2/versions
1:9.20.19-1~bpo12+1
Source reference: /affected/2/versions
1:9.20.20-1
Source reference: /affected/2/versions
1:9.20.20-1~bpo12+1
Source reference: /affected/2/versions
1:9.20.21-1
Source reference: /affected/2/versions
1:9.20.21-1~deb13u1
Source reference: /affected/2/versions
1:9.20.21-1~deb13u1~bpo12+1
Source reference: /affected/2/versions
1:9.20.22-1
Source reference: /affected/2/versions
1:9.20.23-1
Source reference: /affected/2/versions
1:9.20.23-1~deb13u1
Source reference: /affected/2/versions
1:9.20.23-1~deb13u1~bpo12+1
Source reference: /affected/2/versions
1:9.20.24-1
Source reference: /affected/2/versions
1:9.20.26-1~deb13u1
Source reference: /affected/2/versions
1:9.20.26-1~deb13u1~bpo12+1
Source reference: /affected/2/versions
Fixed versions: 1:9.20.26-1
Source reference: /affected/2/ranges
Prerequisites: Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "1:9.18.49-1~deb12u2"
          }
        ]
      }
    ],
    "package": {
      "name": "bind9",
      "purl": "pkg:deb/debian/bind9?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "versions": [
      "1:9.18.12-1",
      "1:9.18.13-1",
      "1:9.18.16-1",
      "1:9.18.16-1~deb12u1",
      "1:9.18.16-1~deb12u1~bpo11+1",
      "1:9.18.19-1~deb12u1",
      "1:9.18.19-1~deb12u1~bpo11+1",
      "1:9.18.24-1",
      "1:9.18.24-1~bpo11+1",
      "1:9.18.28-1~deb12u1",
      "1:9.18.28-1~deb12u2",
      "1:9.18.33-1~deb12u2",
      "1:9.18.41-1~deb12u1",
      "1:9.18.44-1~deb12u1",
      "1:9.18.47-1~deb12u1",
      "1:9.18.49-1~deb12u1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-10822.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "1:9.20.26-1~deb13u1"
          }
        ]
      }
    ],
    "package": {
      "name": "bind9",
      "purl": "pkg:deb/debian/bind9?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "1:9.20.11-4",
      "1:9.20.15-1",
      "1:9.20.15-1~deb13u1",
      "1:9.20.15-1~deb13u1~bpo12+1",
      "1:9.20.15-2",
      "1:9.20.18-1",
      "1:9.20.18-1~deb13u1",
      "1:9.20.18-1~deb13u1~bpo12+1",
      "1:9.20.19-1",
      "1:9.20.19-1~bpo12+1",
      "1:9.20.20-1",
      "1:9.20.20-1~bpo12+1",
      "1:9.20.21-1",
      "1:9.20.21-1~deb13u1",
      "1:9.20.21-1~deb13u1~bpo12+1",
      "1:9.20.22-1",
      "1:9.20.23-1",
      "1:9.20.23-1~deb13u1",
      "1:9.20.23-1~deb13u1~bpo12+1",
      "1:9.20.24-1",
      "1:9.20.26-1~deb13u1~bpo12+1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-10822.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "1:9.20.26-1"
          }
        ]
      }
    ],
    "package": {
      "name": "bind9",
      "purl": "pkg:deb/debian/bind9?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "1:9.20.11-4",
      "1:9.20.15-1",
      "1:9.20.15-1~deb13u1",
      "1:9.20.15-1~deb13u1~bpo12+1",
      "1:9.20.15-2",
      "1:9.20.18-1",
      "1:9.20.18-1~deb13u1",
      "1:9.20.18-1~deb13u1~bpo12+1",
      "1:9.20.19-1",
      "1:9.20.19-1~bpo12+1",
      "1:9.20.20-1",
      "1:9.20.20-1~bpo12+1",
      "1:9.20.21-1",
      "1:9.20.21-1~deb13u1",
      "1:9.20.21-1~deb13u1~bpo12+1",
      "1:9.20.22-1",
      "1:9.20.23-1",
      "1:9.20.23-1~deb13u1",
      "1:9.20.23-1~deb13u1~bpo12+1",
      "1:9.20.24-1",
      "1:9.20.26-1~deb13u1",
      "1:9.20.26-1~deb13u1~bpo12+1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-10822.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event: #55434 · Revision 1
Added to Heist Feed: Sun, 25 Oct 2026 15:50:34 GMT
Publisher date: Wed, 22 Jul 2026 15:16:51 GMT

Read the original announcement