A vulnerability, which was classified as problematic, was found in sahlberg libnfs up to up to 6.0.2. The impacted element is the function libnfs_zdr_string in the library lib/libnfs-zdr.c of the component NFS Handler. Such manipulation leads to improper validation of specified quantity in input.

This vulnerability is referenced as CVE-2026-53689. It is possible to launch the attack remotely. No exploit is available.

It is best practice to apply a patch to resolve this issue.