CVE Vulnerabilities

CVE-2026-13321

Origin Validation Error

Published: Jul 22, 2026 | Modified: Nov 02, 2026
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
RedHat/V2
RedHat/V3
8.6 IMPORTANT
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
Ubuntu
MEDIUM

The BIND resolver accepts validly-signed NSEC records where the Next Domain Name field points outside the signers zone. This issue affects BIND 9 versions 9.11.0 through 9.18.50, 9.20.0 through 9.20.24, 9.21.0 through 9.21.23, 9.11.3-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.24-S1.

Weakness

The product does not properly verify that the source of data or communication is valid.

Affected Software

NameVendorStart VersionEnd Version
BindIsc9.11.0 (including)9.18.50 (including)
BindIsc9.11.3 (including)9.18.50 (including)
BindIsc9.20.0 (including)9.20.24 (including)
BindIsc9.20.9 (including)9.20.24 (including)
BindIsc9.21.0 (including)9.21.23 (including)
Red Hat Enterprise Linux 10RedHatbind-32:9.18.33-15.el10_2.10*
Red Hat Enterprise Linux 10.0 Extended Update SupportRedHatbind-32:9.18.33-4.el10_0.6*
Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSIONRedHatbind-32:9.8.2-0.68.rc1.el6_10.20*
Red Hat Enterprise Linux 7 Extended Lifecycle SupportRedHatbind-32:9.11.4-26.P2.el7_9.21*
Red Hat Enterprise Linux 8RedHatbind9.16-32:9.16.23-0.22.el8_10.12*
Red Hat Enterprise Linux 8RedHatbind-32:9.11.36-16.el8_10.14*
Red Hat Enterprise Linux 8RedHatbind-32:9.11.36-16.el8_10.14*
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRedHatbind-32:9.11.26-4.el8_4.10*
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-OnRedHatbind-32:9.11.26-4.el8_4.10*
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportRedHatbind9.16-32:9.16.23-0.7.el8_6.11*
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportRedHatbind-32:9.11.36-3.el8_6.13*
Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-OnRedHatbind9.16-32:9.16.23-0.7.el8_6.11*
Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-OnRedHatbind-32:9.11.36-3.el8_6.13*
Red Hat Enterprise Linux 8.8 Telecommunications Update ServiceRedHatbind9.16-32:9.16.23-0.14.el8_8.9*
Red Hat Enterprise Linux 8.8 Telecommunications Update ServiceRedHatbind-32:9.11.36-8.el8_8.11*
Red Hat Enterprise Linux 8.8 Update Services for SAP SolutionsRedHatbind9.16-32:9.16.23-0.14.el8_8.9*
Red Hat Enterprise Linux 8.8 Update Services for SAP SolutionsRedHatbind-32:9.11.36-8.el8_8.11*
Red Hat Enterprise Linux 9RedHatbind-32:9.16.23-40.el9_8.8*
Red Hat Enterprise Linux 9RedHatbind9.18-32:9.18.29-14.el9_8.8*
Red Hat Enterprise Linux 9.2 Update Services for SAP SolutionsRedHatbind-32:9.16.23-11.el9_2.12*
Red Hat Enterprise Linux 9.4 Update Services for SAP SolutionsRedHatbind-32:9.16.23-18.el9_4.12*
Red Hat Enterprise Linux 9.6 Extended Update SupportRedHatbind-32:9.16.23-31.el9_6.4*
Red Hat Enterprise Linux 9.6 Extended Update SupportRedHatbind9.18-32:9.18.29-4.el9_6.5*
Red Hat OpenShift Container Platform 4.16RedHatopenshift/ose-rhel-coreos-9:416.94.202609011112-0*
Red Hat OpenShift Container Platform 4.17RedHatopenshift/ose-rhel-coreos-9:417.94.202609191027-0*
Red Hat OpenShift Container Platform 4.18RedHatopenshift/ose-rhel-coreos-9:418.94.202609031320-0*
Red Hat OpenShift Container Platform 4.18RedHatopenshift/ose-rhel-coreos-9:418.94.202609171815-0*
Red Hat OpenShift Container Platform 4.22RedHatopenshift/ose-rhel-coreos-9:4.22.9.8.202608191915-0*
Red Hat Hardened ImagesRedHatbind-main-9.20.26-0.1.hum1*
Bind9Ubuntuesm-infra-legacy/trusty*
Bind9Ubuntuesm-infra-legacy/xenial*
Bind9Ubuntuesm-infra/bionic*
Bind9Ubuntuesm-infra/focal*
Bind9Ubuntujammy*
Bind9Ubuntunoble*
Bind9Ubunturesolute*
Bind9Ubuntuupstream*

References