CVE-2026-12617

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Source
https://cve.org/CVERecord?id=CVE-2026-12617
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-12617.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-12617
Downstream
ALPINE (1)
AZL (1)
BELL (1)
DEBIAN (1)
ECHO (1)
MGASA (1)
MINI (2)
OESA (3)
openSUSE (2)
RHSA (1)
SUSE (2)
UBUNTU (1)
Related
openSUSE (2)
SUSE (2)
Published
2026-07-22T15:16:51Z
Modified
2026-11-04T02:47:31Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

The issue is unexpected program termination based on ordering and/or specific content in responses to queries for CNAME or DNAME, and A records. Specifically, if a client queries for a DNAME and A record below the DNAME to the resolver, and the authoritative server responds positively to the A query but delays the DNAME response and later responds negatively, named may quit unexpectedly. Or, if a client queries for a CNAME and A record for the same name to the resolver, and the authoritative server responds positively to the A query but delays the CNAME response and later responds with a self-referential CNAME, the same failure may occur. This issue affects BIND 9 versions 9.18.0 through 9.18.50, 9.20.0 through 9.20.24, 9.18.11-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.24-S1.

References

Affected packages

Git / github.com/isc-projects/bind9

Affected ranges

Type
GIT
Repo
https://github.com/isc-projects/bind9
Events
Introduced
8db45afa1affcb823e68afdeddedf93e136f5d3e
Last Affected
ad1a84a99f853f5194ec0afc52a152f2b9579074
Introduced
1f554acee8df440c2fc211f976b196b31b9c9284
Last Affected
ad1a84a99f853f5194ec0afc52a152f2b9579074
Introduced
14bbdfc7b9db0870a0b8941ca8812d9983fdba1a
Last Affected
e5d43f1764259da929f6c0200a9db2081141998a
Introduced
98f2a5b7f486829b5644e5e9d6119c8cfefcdf70
Last Affected
e5d43f1764259da929f6c0200a9db2081141998a
Database specific
Show details 
{
    "extracted_events": [
        {
            "cpe": "cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*",
            "range": [
                {
                    "introduced": "9.18.0"
                },
                {
                    "last_affected": "9.18.50"
                }
            ],
            "source": "CPE_RANGE"
        },
        {
            "cpe": "cpe:2.3:a:isc:bind:*:*:*:*:supported_preview:*:*:*",
            "range": [
                {
                    "introduced": "9.18.11"
                },
                {
                    "last_affected": "9.18.50"
                }
            ],
            "source": "CPE_RANGE"
        },
        {
            "cpe": "cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*",
            "range": [
                {
                    "introduced": "9.20.0"
                },
                {
                    "last_affected": "9.20.24"
                }
            ],
            "source": "CPE_RANGE"
        },
        {
            "cpe": "cpe:2.3:a:isc:bind:*:*:*:*:supported_preview:*:*:*",
            "range": [
                {
                    "introduced": "9.20.9"
                },
                {
                    "last_affected": "9.20.24"
                }
            ],
            "source": "CPE_RANGE"
        }
    ]
}

Affected versions

v9.*
v9.18.0
v9.18.50

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-12617.json"

Git / gitlab.isc.org/isc-projects/bind9

Affected ranges

Type
GIT
Repo
https://gitlab.isc.org/isc-projects/bind9
Events
Introduced
8db45afa1affcb823e68afdeddedf93e136f5d3e
Last Affected
ad1a84a99f853f5194ec0afc52a152f2b9579074
Introduced
1f554acee8df440c2fc211f976b196b31b9c9284
Last Affected
ad1a84a99f853f5194ec0afc52a152f2b9579074
Introduced
14bbdfc7b9db0870a0b8941ca8812d9983fdba1a
Last Affected
e5d43f1764259da929f6c0200a9db2081141998a
Introduced
98f2a5b7f486829b5644e5e9d6119c8cfefcdf70
Last Affected
e5d43f1764259da929f6c0200a9db2081141998a
Database specific
Show details 
{
    "extracted_events": [
        {
            "cpe": "cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*",
            "range": [
                {
                    "introduced": "9.18.0"
                },
                {
                    "last_affected": "9.18.50"
                }
            ],
            "source": "CPE_RANGE"
        },
        {
            "cpe": "cpe:2.3:a:isc:bind:*:*:*:*:supported_preview:*:*:*",
            "range": [
                {
                    "introduced": "9.18.11"
                },
                {
                    "last_affected": "9.18.50"
                }
            ],
            "source": "CPE_RANGE"
        },
        {
            "cpe": "cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*",
            "range": [
                {
                    "introduced": "9.20.0"
                },
                {
                    "last_affected": "9.20.24"
                }
            ],
            "source": "CPE_RANGE"
        },
        {
            "cpe": "cpe:2.3:a:isc:bind:*:*:*:*:supported_preview:*:*:*",
            "range": [
                {
                    "introduced": "9.20.9"
                },
                {
                    "last_affected": "9.20.24"
                }
            ],
            "source": "CPE_RANGE"
        }
    ]
}

Affected versions

v9.*
v9.18.0
v9.18.50

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-12617.json"