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

  - In the Linux kernel, the following vulnerability has been resolved: 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 1.18