bind security update
Berkeley Internet Name Domain (BIND) is an implementation of the Domain Name System (DNS) protocols and provides an openly redistributable reference implementation of the major components of the Domain Name System. This package includes the components to operate a DNS server. Security Fix(es): If a BIND resolver sends a query for a DNSSEC-signed authoritative zone, and the authoritative server replies with a valid wildcard answer and signed NSEC3 proof, followed by an unsigned NSEC at the same owner name, it will trigger an unexpected program exit. This issue affects BIND 9 versions 9.11.0 through 9.18.50, 9.20.0 through 9.20.27, 9.21.0 through 9.21.25, 9.11.3-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.27-S1.(CVE-2026-80274) A BIND resolver encountering an SVCB/HTTPS AliasMode record referencing 14 or more SVCB/HTTPS ServiceMode records may fail to properly deallocate internal resources. If this happens repeatedly, resource exhaustion will eventually prevent the resolver from performing new recursive lookups. This issue affects BIND 9 versions 9.18.0 through 9.18.50, 9.20.0 through 9.20.27, 9.21.0 through 9.21.25, 9.18.11-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.27-S1.(CVE-2026-81563) If a BIND resolver has cached a tree of SVCB/HTTPS AliasMode records, and is then queried for the root of that tree, the resolver will spend disproportionate CPU time constructing the response. This issue affects BIND 9 versions 9.18.0 through 9.18.50, 9.20.0 through 9.20.27, 9.2
OESA-2026-4192
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:OESA-2026-4192
bind
Source reference: /affected/0/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 9.18.21-14.oe2403sp3
Source reference:
/affected/0/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": "9.18.21-14.oe2403sp3"
}
]
}
],
"package": {
"name": "bind",
"purl": "pkg:rpm/openEuler/bind&distro=openEuler-24.03-LTS-SP3",
"ecosystem": "openEuler:24.03-LTS-SP3"
},
"database_specific": {
"source": "https://repo.openeuler.org/security/data/osv/OESA-2026-4192.json"
},
"ecosystem_specific": {
"src": [
"bind-9.18.21-14.oe2403sp3.src.rpm"
],
"noarch": [
"bind-dnssec-doc-9.18.21-14.oe2403sp3.noarch.rpm",
"bind-license-9.18.21-14.oe2403sp3.noarch.rpm"
],
"x86_64": [
"bind-9.18.21-14.oe2403sp3.x86_64.rpm",
"bind-chroot-9.18.21-14.oe2403sp3.x86_64.rpm",
"bind-debuginfo-9.18.21-14.oe2403sp3.x86_64.rpm",
"bind-debugsource-9.18.21-14.oe2403sp3.x86_64.rpm",
"bind-devel-9.18.21-14.oe2403sp3.x86_64.rpm",
"bind-dnssec-utils-9.18.21-14.oe2403sp3.x86_64.rpm",
"bind-libs-9.18.21-14.oe2403sp3.x86_64.rpm",
"bind-utils-9.18.21-14.oe2403sp3.x86_64.rpm"
],
"aarch64": [
"bind-9.18.21-14.oe2403sp3.aarch64.rpm",
"bind-chroot-9.18.21-14.oe2403sp3.aarch64.rpm",
"bind-debuginfo-9.18.21-14.oe2403sp3.aarch64.rpm",
"bind-debugsource-9.18.21-14.oe2403sp3.aarch64.rpm",
"bind-devel-9.18.21-14.oe2403sp3.aarch64.rpm",
"bind-dnssec-utils-9.18.21-14.oe2403sp3.aarch64.rpm",
"bind-libs-9.18.21-14.oe2403sp3.aarch64.rpm",
"bind-utils-9.18.21-14.oe2403sp3.aarch64.rpm"
]
}
}
]Publisher severity
high
Source reference: /database_specific/severity
- Event
- #52124 · Revision 1
- Added to Heist Feed
- Publisher date