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CVE-2026-3039

Fixed in a distro release EPSS 1%CVSS 7.5

BIND servers that are configured to use TKEY-based authentication via GSS-API tokens are vulnerable to excessive memory consumption when receiving and processing maliciously-constructed packets. Typically these servers will be found in Active Directory integrated DNS deployments and/or Kerberos-secured DNS environments. This issue affects BIND 9 versions 9.0.0 through 9.16.50, 9.18.0 through 9.18.48, 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, 9.9.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.48-S1, and 9.20.9-S1 through 9.20.22-S1.

Published 2026-05-20 · CVE record · OSV

Products: ISC BIND 9, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7 Extended Lifecycle Support, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions, Red Hat Enterprise Linux 9.6 Extended Update Support, Red Hat OpenShift Container Platform 4.16, Red Hat Hardened Images, Red Hat Enterprise Linux 6, Red Hat OpenShift Container Platform 4

Distro releases

ReleasePackageFixed in
AlmaLinux 10bind32:9.18.33-15.el10_2.2
AlmaLinux 10bind-chroot32:9.18.33-15.el10_2.2
AlmaLinux 10bind-devel32:9.18.33-15.el10_2.2
AlmaLinux 10bind-dnssec-utils32:9.18.33-15.el10_2.2
AlmaLinux 10bind-doc32:9.18.33-15.el10_2.2
AlmaLinux 10bind-libs32:9.18.33-15.el10_2.2
AlmaLinux 10bind-license32:9.18.33-15.el10_2.2
AlmaLinux 10bind-utils32:9.18.33-15.el10_2.2
AlmaLinux 8bind32:9.11.36-16.el8_10.8
AlmaLinux 8bind-chroot32:9.11.36-16.el8_10.8
AlmaLinux 8bind-devel32:9.11.36-16.el8_10.8
AlmaLinux 8bind-export-devel32:9.11.36-16.el8_10.8
AlmaLinux 8bind-export-libs32:9.11.36-16.el8_10.8
AlmaLinux 8bind-libs32:9.11.36-16.el8_10.8
AlmaLinux 8bind-libs-lite32:9.11.36-16.el8_10.8
AlmaLinux 8bind-license32:9.11.36-16.el8_10.8
AlmaLinux 8bind-lite-devel32:9.11.36-16.el8_10.8
AlmaLinux 8bind-pkcs1132:9.11.36-16.el8_10.8
AlmaLinux 8bind-pkcs11-devel32:9.11.36-16.el8_10.8
AlmaLinux 8bind-pkcs11-libs32:9.11.36-16.el8_10.8
AlmaLinux 8bind-pkcs11-utils32:9.11.36-16.el8_10.8
AlmaLinux 8bind-sdb32:9.11.36-16.el8_10.8
AlmaLinux 8bind-sdb-chroot32:9.11.36-16.el8_10.8
AlmaLinux 8bind-utils32:9.11.36-16.el8_10.8
AlmaLinux 8bind9.1632:9.16.23-0.22.el8_10.6
AlmaLinux 8bind9.16-chroot32:9.16.23-0.22.el8_10.6
AlmaLinux 8bind9.16-devel32:9.16.23-0.22.el8_10.6
AlmaLinux 8bind9.16-dnssec-utils32:9.16.23-0.22.el8_10.6
AlmaLinux 8bind9.16-doc32:9.16.23-0.22.el8_10.6
AlmaLinux 8bind9.16-libs32:9.16.23-0.22.el8_10.6
AlmaLinux 8bind9.16-license32:9.16.23-0.22.el8_10.6
AlmaLinux 8bind9.16-utils32:9.16.23-0.22.el8_10.6
AlmaLinux 8python3-bind32:9.11.36-16.el8_10.8
AlmaLinux 8python3-bind9.1632:9.16.23-0.22.el8_10.6
AlmaLinux 9bind32:9.16.23-40.el9_8.2
AlmaLinux 9bind-chroot32:9.16.23-40.el9_8.2
AlmaLinux 9bind-devel32:9.16.23-40.el9_8.2
AlmaLinux 9bind-dnssec-doc32:9.16.23-40.el9_8.2
AlmaLinux 9bind-dnssec-utils32:9.16.23-40.el9_8.2
AlmaLinux 9bind-doc32:9.16.23-40.el9_8.2
AlmaLinux 9bind-libs32:9.16.23-40.el9_8.2
AlmaLinux 9bind-license32:9.16.23-40.el9_8.2
AlmaLinux 9bind-utils32:9.16.23-40.el9_8.2
AlmaLinux 9bind9.1832:9.18.29-14.el9_8.2
AlmaLinux 9bind9.18-chroot32:9.18.29-14.el9_8.2
AlmaLinux 9bind9.18-devel32:9.18.29-14.el9_8.2
AlmaLinux 9bind9.18-dnssec-utils32:9.18.29-14.el9_8.2
AlmaLinux 9bind9.18-doc32:9.18.29-14.el9_8.2
AlmaLinux 9bind9.18-libs32:9.18.29-14.el9_8.2
AlmaLinux 9bind9.18-utils32:9.18.29-14.el9_8.2
AlmaLinux 9python3-bind32:9.16.23-40.el9_8.2
Alpine 3.20bind9.18.49-r0
Alpine 3.21bind9.18.49-r0
Alpine 3.22bind9.20.23-r0
Alpine 3.23bind9.20.23-r0
Alpine 3.24bind9.20.23-r0
Debian 12bind91:9.18.49-1~deb12u2
Debian 13bind91:9.20.23-1~deb13u1
Debian 14bind91:9.20.23-1
Red Hat Enterprise Linux 10.2bind32:9.18.33-15.el10_2.2
Red Hat Enterprise Linux 10.2bind-chroot32:9.18.33-15.el10_2.2
Red Hat Enterprise Linux 10.2bind-debuginfo32:9.18.33-15.el10_2.2
Red Hat Enterprise Linux 10.2bind-debugsource32:9.18.33-15.el10_2.2
Red Hat Enterprise Linux 10.2bind-devel32:9.18.33-15.el10_2.2
Red Hat Enterprise Linux 10.2bind-dnssec-utils32:9.18.33-15.el10_2.2
Red Hat Enterprise Linux 10.2bind-dnssec-utils-debuginfo32:9.18.33-15.el10_2.2
Red Hat Enterprise Linux 10.2bind-doc32:9.18.33-15.el10_2.2
Red Hat Enterprise Linux 10.2bind-libs32:9.18.33-15.el10_2.2
Red Hat Enterprise Linux 10.2bind-libs-debuginfo32:9.18.33-15.el10_2.2
Red Hat Enterprise Linux 10.2bind-license32:9.18.33-15.el10_2.2
Red Hat Enterprise Linux 10.2bind-utils32:9.18.33-15.el10_2.2
Red Hat Enterprise Linux 10.2bind-utils-debuginfo32:9.18.33-15.el10_2.2
Red Hat Enterprise Linux 8bind32:9.11.36-16.el8_10.8
Red Hat Enterprise Linux 8bind-chroot32:9.11.36-16.el8_10.8
Red Hat Enterprise Linux 8bind-debuginfo32:9.11.36-16.el8_10.8
Red Hat Enterprise Linux 8bind-debugsource32:9.11.36-16.el8_10.8
Red Hat Enterprise Linux 8bind-devel32:9.11.36-16.el8_10.8
Red Hat Enterprise Linux 8bind-export-devel32:9.11.36-16.el8_10.8
Red Hat Enterprise Linux 8bind-export-libs32:9.11.36-16.el8_10.8
Red Hat Enterprise Linux 8bind-export-libs-debuginfo32:9.11.36-16.el8_10.8
Red Hat Enterprise Linux 8bind-libs32:9.11.36-16.el8_10.8
Red Hat Enterprise Linux 8bind-libs-debuginfo32:9.11.36-16.el8_10.8
Red Hat Enterprise Linux 8bind-libs-lite32:9.11.36-16.el8_10.8
Red Hat Enterprise Linux 8bind-libs-lite-debuginfo32:9.11.36-16.el8_10.8
Red Hat Enterprise Linux 8bind-license32:9.11.36-16.el8_10.8
Red Hat Enterprise Linux 8bind-lite-devel32:9.11.36-16.el8_10.8
Red Hat Enterprise Linux 8bind-pkcs1132:9.11.36-16.el8_10.8
Red Hat Enterprise Linux 8bind-pkcs11-debuginfo32:9.11.36-16.el8_10.8
Red Hat Enterprise Linux 8bind-pkcs11-devel32:9.11.36-16.el8_10.8
Red Hat Enterprise Linux 8bind-pkcs11-libs32:9.11.36-16.el8_10.8
Red Hat Enterprise Linux 8bind-pkcs11-libs-debuginfo32:9.11.36-16.el8_10.8
Red Hat Enterprise Linux 8bind-pkcs11-utils32:9.11.36-16.el8_10.8
Red Hat Enterprise Linux 8bind-pkcs11-utils-debuginfo32:9.11.36-16.el8_10.8
Red Hat Enterprise Linux 8bind-sdb32:9.11.36-16.el8_10.8
Red Hat Enterprise Linux 8bind-sdb-chroot32:9.11.36-16.el8_10.8
Red Hat Enterprise Linux 8bind-sdb-debuginfo32:9.11.36-16.el8_10.8
Red Hat Enterprise Linux 8bind-utils32:9.11.36-16.el8_10.8
Red Hat Enterprise Linux 8bind-utils-debuginfo32:9.11.36-16.el8_10.8
Red Hat Enterprise Linux 8bind9.1632:9.16.23-0.22.el8_10.6
Red Hat Enterprise Linux 8bind9.16-chroot32:9.16.23-0.22.el8_10.6
Red Hat Enterprise Linux 8bind9.16-debuginfo32:9.16.23-0.22.el8_10.6
Red Hat Enterprise Linux 8bind9.16-debugsource32:9.16.23-0.22.el8_10.6
Red Hat Enterprise Linux 8bind9.16-devel32:9.16.23-0.22.el8_10.6
Red Hat Enterprise Linux 8bind9.16-dnssec-utils32:9.16.23-0.22.el8_10.6
Red Hat Enterprise Linux 8bind9.16-dnssec-utils-debuginfo32:9.16.23-0.22.el8_10.6
Red Hat Enterprise Linux 8bind9.16-doc32:9.16.23-0.22.el8_10.6
Red Hat Enterprise Linux 8bind9.16-libs32:9.16.23-0.22.el8_10.6
Red Hat Enterprise Linux 8bind9.16-libs-debuginfo32:9.16.23-0.22.el8_10.6
Red Hat Enterprise Linux 8bind9.16-license32:9.16.23-0.22.el8_10.6
Red Hat Enterprise Linux 8bind9.16-utils32:9.16.23-0.22.el8_10.6
Red Hat Enterprise Linux 8bind9.16-utils-debuginfo32:9.16.23-0.22.el8_10.6
Red Hat Enterprise Linux 8python3-bind32:9.11.36-16.el8_10.8
Red Hat Enterprise Linux 8python3-bind9.1632:9.16.23-0.22.el8_10.6
Red Hat Enterprise Linux 9bind32:9.16.23-40.el9_8.2
Red Hat Enterprise Linux 9bind-chroot32:9.16.23-40.el9_8.2
Red Hat Enterprise Linux 9bind-debuginfo32:9.16.23-40.el9_8.2
Red Hat Enterprise Linux 9bind-debugsource32:9.16.23-40.el9_8.2
Red Hat Enterprise Linux 9bind-devel32:9.16.23-40.el9_8.2
Red Hat Enterprise Linux 9bind-dnssec-doc32:9.16.23-40.el9_8.2
Red Hat Enterprise Linux 9bind-dnssec-utils32:9.16.23-40.el9_8.2
Red Hat Enterprise Linux 9bind-dnssec-utils-debuginfo32:9.16.23-40.el9_8.2
Red Hat Enterprise Linux 9bind-doc32:9.16.23-40.el9_8.2
Red Hat Enterprise Linux 9bind-libs32:9.16.23-40.el9_8.2
Red Hat Enterprise Linux 9bind-libs-debuginfo32:9.16.23-40.el9_8.2
Red Hat Enterprise Linux 9bind-license32:9.16.23-40.el9_8.2
Red Hat Enterprise Linux 9bind-utils32:9.16.23-40.el9_8.2
Red Hat Enterprise Linux 9bind-utils-debuginfo32:9.16.23-40.el9_8.2
Red Hat Enterprise Linux 9bind9.1832:9.18.29-14.el9_8.2
Red Hat Enterprise Linux 9bind9.18-chroot32:9.18.29-14.el9_8.2
Red Hat Enterprise Linux 9bind9.18-debuginfo32:9.18.29-14.el9_8.2
Red Hat Enterprise Linux 9bind9.18-debugsource32:9.18.29-14.el9_8.2
Red Hat Enterprise Linux 9bind9.18-devel32:9.18.29-14.el9_8.2
Red Hat Enterprise Linux 9bind9.18-dnssec-utils32:9.18.29-14.el9_8.2
Red Hat Enterprise Linux 9bind9.18-dnssec-utils-debuginfo32:9.18.29-14.el9_8.2
Red Hat Enterprise Linux 9bind9.18-doc32:9.18.29-14.el9_8.2
Red Hat Enterprise Linux 9bind9.18-libs32:9.18.29-14.el9_8.2
Red Hat Enterprise Linux 9bind9.18-libs-debuginfo32:9.18.29-14.el9_8.2
Red Hat Enterprise Linux 9bind9.18-utils32:9.18.29-14.el9_8.2
Red Hat Enterprise Linux 9bind9.18-utils-debuginfo32:9.18.29-14.el9_8.2
Red Hat Enterprise Linux 9python3-bind32:9.16.23-40.el9_8.2
Red Hat hummingbird 1bind0:9.18.49-1.hum1
Red Hat hummingbird 1bind-chroot0:9.18.49-1.hum1
Red Hat hummingbird 1bind-devel0:9.18.49-1.hum1
Red Hat hummingbird 1bind-dnssec-utils0:9.18.49-1.hum1
Red Hat hummingbird 1bind-doc0:9.18.49-1.hum1
Red Hat hummingbird 1bind-libs0:9.18.49-1.hum1
Red Hat hummingbird 1bind-utils0:9.18.49-1.hum1
Red Hat rhel aus 8.6bind9.1632:9.16.23-0.7.el8_6.11
Red Hat rhel aus 8.6bind9.16-libs32:9.16.23-0.7.el8_6.11
Red Hat rhel e4s 8.8bind9.1632:9.16.23-0.14.el8_8.9
Red Hat rhel e4s 8.8bind9.16-dnssec-utils32:9.16.23-0.14.el8_8.9
Red Hat rhel e4s 8.8bind9.16-libs32:9.16.23-0.14.el8_8.9
Red Hat rhel e4s 9.4bind32:9.16.23-18.el9_4.12
Red Hat rhel e4s 9.4bind-chroot32:9.16.23-18.el9_4.12
Red Hat rhel e4s 9.4bind-debuginfo32:9.16.23-18.el9_4.12
Red Hat rhel e4s 9.4bind-debugsource32:9.16.23-18.el9_4.12
Red Hat rhel e4s 9.4bind-dnssec-doc32:9.16.23-18.el9_4.12
Red Hat rhel e4s 9.4bind-dnssec-utils32:9.16.23-18.el9_4.12
Red Hat rhel e4s 9.4bind-dnssec-utils-debuginfo32:9.16.23-18.el9_4.12
Red Hat rhel e4s 9.4bind-libs32:9.16.23-18.el9_4.12
Red Hat rhel e4s 9.4bind-libs-debuginfo32:9.16.23-18.el9_4.12
Red Hat rhel e4s 9.4bind-license32:9.16.23-18.el9_4.12
Red Hat rhel e4s 9.4bind-utils32:9.16.23-18.el9_4.12
Red Hat rhel e4s 9.4bind-utils-debuginfo32:9.16.23-18.el9_4.12
Red Hat rhel e4s 9.4python3-bind32:9.16.23-18.el9_4.12
Red Hat rhel els 7bind32:9.11.4-26.P2.el7_9.21
Red Hat rhel els 7bind-export-libs32:9.11.4-26.P2.el7_9.21
Red Hat rhel els 7bind-libs-lite32:9.11.4-26.P2.el7_9.21
Red Hat rhel els 7bind-pkcs1132:9.11.4-26.P2.el7_9.21
Red Hat rhel els 7bind-pkcs11-libs32:9.11.4-26.P2.el7_9.21
Red Hat rhel els 7bind-pkcs11-utils32:9.11.4-26.P2.el7_9.21
Red Hat rhel els 7bind-sdb32:9.11.4-26.P2.el7_9.21
Red Hat rhel eus 9.6bind32:9.16.23-31.el9_6.4
Red Hat rhel eus 9.6bind-dnssec-utils32:9.16.23-31.el9_6.4
Red Hat rhel eus 9.6bind-libs32:9.16.23-31.el9_6.4
Red Hat rhel eus 9.6bind-utils32:9.16.23-31.el9_6.4
Red Hat rhel eus long life 8.6bind9.1632:9.16.23-0.7.el8_6.11
Red Hat rhel eus long life 8.6bind9.16-libs32:9.16.23-0.7.el8_6.11
Red Hat rhel tus 8.8bind9.1632:9.16.23-0.14.el8_8.9
Red Hat rhel tus 8.8bind9.16-dnssec-utils32:9.16.23-0.14.el8_8.9
Red Hat rhel tus 8.8bind9.16-libs32:9.16.23-0.14.el8_8.9
Rocky Linux 10bind2:9.18.33-15.el10_2.2
Rocky Linux 8bind2:9.11.36-16.el8_10.8
Rocky Linux 8bind9.162:9.16.23-0.22.el8_10.6
Rocky Linux 9bind2:9.16.23-40.el9_8.2
Rocky Linux 9bind9.182:9.18.29-14.el9_8.2
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOSbind9.16.50-150400.5.62.1
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSSbind9.16.50-150400.5.62.1
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOSbind9.16.50-150500.8.38.1
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSSbind9.16.50-150500.8.38.1
SUSE Linux Enterprise Micro 5.5bind9.16.50-150500.8.38.1
SUSE Linux Enterprise Module for Basesystem 15 SP7bind9.20.23-150700.3.25.1
SUSE Linux Enterprise Module for Basesystem 15 SP7bind9.16.6-150300.22.59.1
SUSE Linux Enterprise Module for Server Applications 15 SP7bind9.20.23-150700.3.25.1
SUSE Linux Enterprise Server 15 SP4-LTSSbind9.16.50-150400.5.62.1
SUSE Linux Enterprise Server 15 SP5-LTSSbind9.16.50-150500.8.38.1
SUSE Linux Enterprise Server 15 SP6-LTSSbind9.16.6-150300.22.59.1
SUSE Linux Enterprise Server 15 SP6-LTSSbind9.18.49-150600.3.26.1
SUSE Linux Enterprise Server 16.0bind9.20.23-160000.1.1
SUSE Linux Enterprise Server for SAP Applications 15 SP4bind9.16.50-150400.5.62.1
SUSE Linux Enterprise Server for SAP Applications 15 SP5bind9.16.50-150500.8.38.1
SUSE Linux Enterprise Server for SAP Applications 15 SP6bind9.18.49-150600.3.26.1
SUSE Linux Enterprise Server for SAP Applications 15 SP6bind9.16.6-150300.22.59.1
SUSE Linux Enterprise Server for SAP applications 16.0bind9.20.23-160000.1.1
SUSE Manager Client Tools for SLE Micro 5bind9.16.6-150000.12.91.1
SUSE Multi Linux Manager Tools SLE-Micro-5bind9.16.6-150000.12.91.1
Ubuntu 20.04 LTSbind9-libsno fix
Ubuntu 22.04 LTSbind91:9.18.39-0ubuntu0.22.04.4
Ubuntu 22.04 LTSbind9-libsno fix
Ubuntu 24.04 LTSbind91:9.18.39-0ubuntu0.24.04.5
Ubuntu 25.10bind91:9.20.11-1ubuntu2.4
Ubuntu 26.04 LTSbind91:9.20.18-1ubuntu2.1
Ubuntu Pro 14.04 LTSbind91:9.9.5.dfsg-3ubuntu0.19+esm14
Ubuntu Pro 16.04 LTSbind91:9.10.3.dfsg.P4-8ubuntu1.19+esm10
Ubuntu Pro 18.04 LTSbind91:9.11.3+dfsg-1ubuntu1.19+esm5
Ubuntu Pro 20.04 LTSbind91:9.18.30-0ubuntu0.20.04.2+esm2
openSUSE Leap 16.0bind9.20.23-160000.1.1
openSUSE Tumbleweedbind9.20.23-1.1