Integer Overflow Vulnerability in libnfs by Sahlberg

CVE-2026-53689

What is CVE-2026-53689?

The libnfs library, utilized for NFS file system access, is susceptible to an integer overflow when it fails to properly validate string sizes during connections to specially crafted NFS servers. This vulnerability, found in the function libnfs_zdr_string located in lib/libnfs-zdr.c, can potentially allow an attacker to exploit the flaw, leading to unexpected behavior or system compromise.

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