A bind security update has been released for CentOS 7.

CESA-2021:1469 Important CentOS 7 bind Security Update

CentOS Errata and Security Advisory 2021:1469 Important

Upstream details at :   https://access.redhat.com/errata/RHSA-2021:1469

The following updated files have been uploaded and are currently
syncing to the mirrors: ( sha256sum Filename )

x86_64:
1e67462d537e085a22099169bfc37a18a1e6f210a61839b9e0b229fcde3add6e bind-9.11.4-26.P2.el7_9.5.x86_64.rpm
58d55e76b88d088f5d397d7b1d908c6ffc3f06ec1ee82d97c1383fb167104aab bind-chroot-9.11.4-26.P2.el7_9.5.x86_64.rpm
c19e37c8595f0a36840e5ffde24ba2022e36425cc814639db070930027e078ab bind-devel-9.11.4-26.P2.el7_9.5.i686.rpm
9c36a1622791ce03d6ac94ea9fa499f523998938199fdd4b31677374da4a1118 bind-devel-9.11.4-26.P2.el7_9.5.x86_64.rpm
b7958e30f90b1219e2202114385b2a92aa2271e3064f4b5e46ba9f99c2beeef9 bind-export-devel-9.11.4-26.P2.el7_9.5.i686.rpm
84515e054cf47fee3e466382e25e19eb92f6f9947741105ea5f6071f7fe18185 bind-export-devel-9.11.4-26.P2.el7_9.5.x86_64.rpm
e9c3f41aecb56447424691a9aedff1c7449cb17f5a1e759c6f7c7c089b2d1adf bind-export-libs-9.11.4-26.P2.el7_9.5.i686.rpm
64c82c743b0aa34d2ad89724607562e8cf196bdaec58dcfd940a8f728ce9c754 bind-export-libs-9.11.4-26.P2.el7_9.5.x86_64.rpm
8e85466eac6dba299f3f8211333d50827e103a67a8296884c3d1d1a87ce8a828 bind-libs-9.11.4-26.P2.el7_9.5.i686.rpm
0f79393bd746c2a784972b1db928fdca74d0c0324e00a1859ceede81d1af8b93 bind-libs-9.11.4-26.P2.el7_9.5.x86_64.rpm
2974a1f35f8a1dbd3f46361c76fee7876402f098199e8208407a59471c892340 bind-libs-lite-9.11.4-26.P2.el7_9.5.i686.rpm
0d291da8585bc5dc3d72a81e494c64767eb04ba5a938f0847121edded2bcbdec bind-libs-lite-9.11.4-26.P2.el7_9.5.x86_64.rpm
fad06e13ad887025495d47068294bf443e6c6209bbb16324fa1b3eb9ef5a885e bind-license-9.11.4-26.P2.el7_9.5.noarch.rpm
f4a5bde79d6cee985d2f0ff8727b2428ec15fbdd03adaa9733b09f7b173c01c7 bind-lite-devel-9.11.4-26.P2.el7_9.5.i686.rpm
54904b5dad92e58cb221e767835398cc72621bab301b2d3964a854595d9e6d60 bind-lite-devel-9.11.4-26.P2.el7_9.5.x86_64.rpm
b524427963041d0c49036598caa6da026b76085863c14fdbec1466146a3b137a bind-pkcs11-9.11.4-26.P2.el7_9.5.x86_64.rpm
2eb85e9cbd29bebc8ce3cd107af06c6ae0f59fcc9a1056aa9226b8201c309a26 bind-pkcs11-devel-9.11.4-26.P2.el7_9.5.i686.rpm
afda0e4a1bc46470df4a4993f659a23e39c688752ccd5958b18e448a2d51f8d1 bind-pkcs11-devel-9.11.4-26.P2.el7_9.5.x86_64.rpm
0d953611a4ac63b86ca9bbf1ca0f35e9ef53094123f9e581e16919ed0393c690 bind-pkcs11-libs-9.11.4-26.P2.el7_9.5.i686.rpm
d0428b24d84b75519bce64c115f13b151f065712ac094dcd035dc9b63bbdc664 bind-pkcs11-libs-9.11.4-26.P2.el7_9.5.x86_64.rpm
566646f7e600ab8480640215904fa6db201c8d068ab3d6f8b7e348bf1ad1fd34 bind-pkcs11-utils-9.11.4-26.P2.el7_9.5.x86_64.rpm
02b9f36207f55eecbaed6219e76bf38881875be99f49e0eca71ec75e6d3a7aa3 bind-sdb-9.11.4-26.P2.el7_9.5.x86_64.rpm
8317594c4733bc6fd9c13e0001d962d14e7bffb83ed66e6337f6b8a490067ea9 bind-sdb-chroot-9.11.4-26.P2.el7_9.5.x86_64.rpm
43f50cb7c44309253c847a258d592992e250678cda19887c482849bd67b447e3 bind-utils-9.11.4-26.P2.el7_9.5.x86_64.rpm

Source:
b32c2203edd26913cf78f32b3442322b33df912405871fc9141a011948394498 bind-9.11.4-26.P2.el7_9.5.src.rpm