The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - nfsd: fix posix_acl leak and ignored error in nfsd4_create_file nfsd4_create_file() has two bugs in its     ACL handling: The return value of nfsd4_acl_to_attr() is silently discarded. When the NFSv4-to-POSIX ACL     conversion fails (e.g., -EINVAL for unsupported ACE types), the file is created without any ACL and the     client receives NFS4_OK. This violates RFC 7530/8881 which require the server to reject unsupported     attributes on CREATE. When start_creating() fails after ACL attributes have been populated in attrs     (either via nfsd4_acl_to_attr or via ownership transfer from open->op_dpacl/op_pacl), the function jumps     to out_write which skips nfsd_attrs_free(). The posix_acl allocations are leaked. A client can trigger     this repeatedly with OPEN(CREATE), ACL attributes, and an invalid filename (e.g., longer than NAME_MAX).
    Fix both by capturing the nfsd4_acl_to_attr() return value and by changing the early error paths to jump     to out instead of out_write. Initialize child to ERR_PTR(-EINVAL) so that end_creating() is safe to call     even if start_creating() was never reached. (CVE-2026-53396)

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Linux Distros Unpatched Vulnerability : CVE-2026-53396

high Nessus Plugin ID 328114

Version 1.7