A bind security update has been released for CentOS 7.

CESA-2021:0671 Important CentOS 7 bind Security Update

CentOS Errata and Security Advisory 2021:0671 Important

Upstream details at :   https://access.redhat.com/errata/RHSA-2021:0671

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

x86_64:
1edd338d1d20b130c1a107ea59652842ef0a8167393745468301105b2a59ca6d bind-9.11.4-26.P2.el7_9.4.x86_64.rpm
1a87cf953d16581b70a51f9c131f6f714e364e0a57dee8b2856b43aad7d89104 bind-chroot-9.11.4-26.P2.el7_9.4.x86_64.rpm
ee52c09ab7dca8a8e11fe87c0855b1ce38df1fdaef899e8ce50d80b72009b62b bind-devel-9.11.4-26.P2.el7_9.4.i686.rpm
5bc7e489f2286aea26973b124918a70b6f8f29e9936508ee68e5fa89b453002b bind-devel-9.11.4-26.P2.el7_9.4.x86_64.rpm
28d32718cac59baf9c4162573d291af2345e664d16de912661fa18de7157ca63 bind-export-devel-9.11.4-26.P2.el7_9.4.i686.rpm
a9b560ad84f4c4da2302f2f1c1581df4d699c0e0f9cf0754e125b2bab6ea4795 bind-export-devel-9.11.4-26.P2.el7_9.4.x86_64.rpm
f23ad28777ef3020a0b4c72141bc0d367c9a60a8eca144eafcef471df349d126 bind-export-libs-9.11.4-26.P2.el7_9.4.i686.rpm
6df17149302a2cb98a128880ea6df6fe1092d0cd169dda5bd470cf1dc5c73494 bind-export-libs-9.11.4-26.P2.el7_9.4.x86_64.rpm
c779ed4a8b7cd8df613f47c214050d61ac25927ab97381ffb59944fb998585ff bind-libs-9.11.4-26.P2.el7_9.4.i686.rpm
43570d8e293bd93001cb8c4cac3e4b2045b3024b7f3e08f4449735bfb9d206c6 bind-libs-9.11.4-26.P2.el7_9.4.x86_64.rpm
43a8791d748c2ca3cb5e8c1b6682319313b8373bb0e84e9e545ba09dc9e093bb bind-libs-lite-9.11.4-26.P2.el7_9.4.i686.rpm
5380ad090ba99c100379b2fc1cf54a62f85cdfe390b04b6e5e0fe4c213aa4661 bind-libs-lite-9.11.4-26.P2.el7_9.4.x86_64.rpm
4cfa5141393a1004bc9d7885fee9a606293ee21216066238700f933afd5e4598 bind-license-9.11.4-26.P2.el7_9.4.noarch.rpm
d97cd106cf9572dc73237ecabf174c9e7fd63f1831ecd180582edfe2ee993409 bind-lite-devel-9.11.4-26.P2.el7_9.4.i686.rpm
87c1a04fd7037d13c6be98a8a975ef7a41eec66aa9031b781b61eabe9107ce9b bind-lite-devel-9.11.4-26.P2.el7_9.4.x86_64.rpm
8df89d78d785928efa5b8d059e96ce33ffe0c9356663c9acb50ce3ec8c660d92 bind-pkcs11-9.11.4-26.P2.el7_9.4.x86_64.rpm
f5a544c1c54d159d63ecf02b66555411db8230d7164937c969ee12412a7b3426 bind-pkcs11-devel-9.11.4-26.P2.el7_9.4.i686.rpm
1612a4f04271f95f905580cfc4cc94695b1a11ade17803d000750d518bc0e3ac bind-pkcs11-devel-9.11.4-26.P2.el7_9.4.x86_64.rpm
86d0b148abfa317696a046ac187cb479b242ea3f9ec769e6891130395ea172a9 bind-pkcs11-libs-9.11.4-26.P2.el7_9.4.i686.rpm
40ceb41cf108321fdafc40bff1168cbc4f3e85a9ec271d6b55e946ed83697fb7 bind-pkcs11-libs-9.11.4-26.P2.el7_9.4.x86_64.rpm
b97a0e1f72d3fb43f706975f8e02ff0c130ef35fc6b4763eb18db88980fcde25 bind-pkcs11-utils-9.11.4-26.P2.el7_9.4.x86_64.rpm
235100bdba26a1af51c7f66f533d9318837d01dafa0c5e822245c8e0e5469978 bind-sdb-9.11.4-26.P2.el7_9.4.x86_64.rpm
a191bcc40fb33d21a6109e116756d8999e60adb5535583f65d05f51ff3047463 bind-sdb-chroot-9.11.4-26.P2.el7_9.4.x86_64.rpm
461bf2c4280e37fa28f8577583cf56315e10dc6a8898497da766b5dffbdb1a56 bind-utils-9.11.4-26.P2.el7_9.4.x86_64.rpm

Source:
c499acbae99041e5bba4d447ec818d428bdcd477b7436f49c0499752925ce86b bind-9.11.4-26.P2.el7_9.4.src.rpm