A libldb security update has been released for CentOS 7.

CESA-2021:1072 Important CentOS 7 libldb Security Update

CentOS Errata and Security Advisory 2021:1072 Important

Upstream details at :   https://access.redhat.com/errata/RHSA-2021:1072

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

x86_64:
67364ca692de365478eee5a94879717c1fae2b7a4ba46d128ec04f0477c8c2b5 ldb-tools-1.5.4-2.el7.x86_64.rpm
36ad5a43df60889dd9c1134cb0e042317befa64f7293f44bc91271fddbbfc7e6 libldb-1.5.4-2.el7.i686.rpm
cec370a7441899c3ffcd47f783a0437d9d649fd4a1252c6c317561f431e537c4 libldb-1.5.4-2.el7.x86_64.rpm
359852ce38e0555b23e78c945070ef67c0599138eac0c52de77a819e8fdebce9 libldb-devel-1.5.4-2.el7.i686.rpm
4d0e360eff9294623b345353bcf2cb4623c50a3e2bf31ace6ba05141150d85fd libldb-devel-1.5.4-2.el7.x86_64.rpm
29124a79cce7024da4f024131a66f80d78a70d73c5fafe6456617633e5b83560 pyldb-1.5.4-2.el7.i686.rpm
8043266fac97f3c92dfeaa8fad590469ad37ab990d86e9ece87829bdd9e0c8ae pyldb-1.5.4-2.el7.x86_64.rpm
b3dbb953a4dc9b8b5ee95024d51d922488db5a0f0ec2ece9bf47d8d5cbbf24fa pyldb-devel-1.5.4-2.el7.i686.rpm
8f596e23215f48c31a9bb115c327431b21431ac93d7279b39dc998ca0bdfc6b8 pyldb-devel-1.5.4-2.el7.x86_64.rpm

Source:
e678f1a0df3c67bd8f6319dbe32013a311d6d797b51284ff7d5e254c2f7a1ff5 libldb-1.5.4-2.el7.src.rpm