  Nuclear parton distribution functions (nuclear PDFs) are non-perturbative
objects that encode the partonic behaviour of bound nucleons. To avoid
potential higher-twist contributions, the data probing the high-$x$ end of
nuclear PDFs are sometimes left out from the global extractions despite their
potential to constrain the fit parameters. In the present work we focus on the
kinematic corner covered by the new high-$x$ data measured by the CLAS/JLab
collaboration. By using the Hessian re-weighting technique, we are able to
quantitatively test the compatibility of these data with globally analyzed
nuclear PDFs and explore the expected impact on the valence-quark distributions
at high $x$. We find that the data are in a good agreement with the EPPS16 and
nCTEQ15 nuclear PDFs whereas they disagree with TuJu19. The implications on
flavour separation, higher-twist contributions and models of EMC effect are
discussed.
