UnratedFix available
bind: Fix of 3 CVEs
Type: advisorySources: OSV
- CVE-2026-19666: clear the NOQNAME proof alias on the DNS64 filter64 path in query_find(), so query_addnoqnameproof() no longer dereferences the rdataset that query_filter64() has already returned to the message rdataset pool - CVE-2026-19667: reject negative cache records that do not fit in a dns_rdata_t; copy_rdataset()/addoptout() now bound the assembled record by DNS_RDATA_MAXLENGTH instead of letting a 64 KiB record reach dns_rdataslab_fromrdataset(), where it trips INSIST(length <= 0xffff) and aborts named - CVE-2026-80274: record the denial type (NSEC or NSEC3) next to the NOQNAME proof owner so isc__rdatalist_getnoqname() returns the same denial record isc__rdatalist_addnoqname() selected, instead of the first one in wire order
- Products
- bind, bind-chroot, bind-devel, bind-export-devel, bind-export-libs, bind-libs, bind-libs-lite, bind-license, bind-lite-devel, bind-pkcs11, bind-pkcs11-devel, bind-pkcs11-libs, bind-pkcs11-utils, bind-sdb, bind-sdb-chroot, bind-utils, python3-bind
- Affected versions
- Not specified
- Fixed versions
- 32:9.11.36-13.el8.tuxcare.els14
- CVEs
- CVE-2026-19666, CVE-2026-19667, CVE-2026-80274
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 10:47 UTC · Revision 1
Source evidence
- CVE-2026-19666: clear the NOQNAME proof alias on the DNS64 filter64 path in query_find(), so query_addnoqnameproof() no longer dereferences the rdataset that query_filter64() has already returned to the message rdataset pool - CVE-2026-19667: reject negative cache records that do not fit in a dns_rdata_t; copy_rdataset()/addoptout() now bound the assembled record by DNS_RDATA_MAXLENGTH instead of letting a 64 KiB record reach dns_rdataslab_fromrdataset(), where it trips INSIST(length <= 0xffff) and aborts named - CVE-2026-80274: record the denial type (NSEC or NSEC3) next to the NOQNAME proof owner so isc__rdatalist_getnoqname() returns the same denial record isc__rdatalist_addnoqname() selected, instead of the first one in wire order
osv:CLSA-2026-1790583590
bind
Fixed versions: 32:9.11.36-13.el8.tuxcare.els14
bind-chroot
Fixed versions: 32:9.11.36-13.el8.tuxcare.els14
bind-devel
Fixed versions: 32:9.11.36-13.el8.tuxcare.els14
bind-export-devel
Fixed versions: 32:9.11.36-13.el8.tuxcare.els14
bind-export-libs
Fixed versions: 32:9.11.36-13.el8.tuxcare.els14
bind-libs
Fixed versions: 32:9.11.36-13.el8.tuxcare.els14
bind-libs-lite
Fixed versions: 32:9.11.36-13.el8.tuxcare.els14
bind-license
Fixed versions: 32:9.11.36-13.el8.tuxcare.els14
bind-lite-devel
Fixed versions: 32:9.11.36-13.el8.tuxcare.els14
bind-pkcs11
Fixed versions: 32:9.11.36-13.el8.tuxcare.els14
bind-pkcs11-devel
Fixed versions: 32:9.11.36-13.el8.tuxcare.els14
bind-pkcs11-libs
Fixed versions: 32:9.11.36-13.el8.tuxcare.els14
bind-pkcs11-utils
Fixed versions: 32:9.11.36-13.el8.tuxcare.els14
bind-sdb
Fixed versions: 32:9.11.36-13.el8.tuxcare.els14
bind-sdb-chroot
Fixed versions: 32:9.11.36-13.el8.tuxcare.els14
bind-utils
Fixed versions: 32:9.11.36-13.el8.tuxcare.els14
python3-bind
Fixed versions: 32:9.11.36-13.el8.tuxcare.els14
Complete source record
{
"id": "8fde2a83e8c566a66f0f6ddae5288b1c392185e7ed048c151dce257a087d4fe1",
"url": "https://osv.dev/vulnerability/CLSA-2026-1790583590",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "bind: Fix of 3 CVEs",
"summary": "- CVE-2026-19666: clear the NOQNAME proof alias on the DNS64 filter64 path in query_find(), so query_addnoqnameproof() no longer dereferences the rdataset that query_filter64() has already returned to the message rdataset pool - CVE-2026-19667: reject negative cache records that do not fit in a dns_rdata_t; copy_rdataset()/addoptout() now bound the assembled record by DNS_RDATA_MAXLENGTH instead of letting a 64 KiB record reach dns_rdataslab_fromrdataset(), where it trips INSIST(length <= 0xffff) and aborts named - CVE-2026-80274: record the denial type (NSEC or NSEC3) next to the NOQNAME proof owner so isc__rdatalist_getnoqname() returns the same denial record isc__rdatalist_addnoqname() selected, instead of the first one in wire order",
"evidence": "osv:CLSA-2026-1790583590",
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{
"name": {
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"evidence": "/affected/9/package/name"
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"fixed_versions": [
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{
"name": {
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{
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{
"name": {
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"evidence": "/affected/16/package/name"
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"severity": "unknown",
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"aliases": [
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"package": {
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"ecosystem": "TuxCare:CentOS-Stream:8"
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"database_specific": {
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"package": {
"name": "bind-license",
"purl": "pkg:rpm/tuxcare/bind-license?distro=centos-stream-8",
"ecosystem": "TuxCare:CentOS-Stream:8"
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"ecosystem": "TuxCare:CentOS-Stream:8"
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],
"package": {
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"purl": "pkg:rpm/tuxcare/bind-pkcs11?distro=centos-stream-8",
"ecosystem": "TuxCare:CentOS-Stream:8"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1790583590.json"
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],
"package": {
"name": "bind-pkcs11-devel",
"purl": "pkg:rpm/tuxcare/bind-pkcs11-devel?distro=centos-stream-8",
"ecosystem": "TuxCare:CentOS-Stream:8"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1790583590.json"
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"package": {
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],
"package": {
"name": "bind-sdb",
"purl": "pkg:rpm/tuxcare/bind-sdb?distro=centos-stream-8",
"ecosystem": "TuxCare:CentOS-Stream:8"
},
"database_specific": {
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],
"package": {
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"purl": "pkg:rpm/tuxcare/bind-sdb-chroot?distro=centos-stream-8",
"ecosystem": "TuxCare:CentOS-Stream:8"
},
"database_specific": {
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],
"package": {
"name": "bind-utils",
"purl": "pkg:rpm/tuxcare/bind-utils?distro=centos-stream-8",
"ecosystem": "TuxCare:CentOS-Stream:8"
},
"database_specific": {
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}
},
{
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}
]
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],
"package": {
"name": "python3-bind",
"purl": "pkg:rpm/tuxcare/python3-bind?distro=centos-stream-8",
"ecosystem": "TuxCare:CentOS-Stream:8"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1790583590.json"
}
}
],
"modified": "2026-10-26T09:30:55.768088625Z",
"provider": "osv",
"upstream": [
"CVE-2026-19666",
"CVE-2026-19667",
"CVE-2026-80274"
],
"references": [
"https://errata.tuxcare.com/els_os/centos-stream8els/CLSA-2026-1790583590.html",
"https://nvd.nist.gov/vuln/detail/CVE-2026-19666",
"https://nvd.nist.gov/vuln/detail/CVE-2026-19667",
"https://nvd.nist.gov/vuln/detail/CVE-2026-80274"
]
},
"related_cves": [
{
"value": "CVE-2026-19666",
"evidence": "/upstream"
},
{
"value": "CVE-2026-19667",
"evidence": "/upstream"
},
{
"value": "CVE-2026-80274",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 447343,
"published_at": "2026-09-28T08:20:02+00:00"
}