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

  - btrfs: free pages on error in btrfs_uring_read_extent() In this function the 'pages' object is never freed     in the hopes that it is picked up by btrfs_uring_read_finished() whenever that executes in the future. But     that's just the happy path. Along the way previous allocations might have gone wrong, or we might not get
    -EIOCBQUEUED from btrfs_encoded_read_regular_fill_pages(). In all these cases, we go to a cleanup section     that frees all memory allocated by this function without assuming any deferred execution, and this also     needs to happen for the 'pages' allocation. (CVE-2026-23423)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Published	Updated	Severity
305187	Linux Distros Unpatched Vulnerability : CVE-2026-23423	Nessus	Misc.	4/7/2026	7/31/2026	medium
311340	Amazon Linux 2023 : bpftool6.18, kernel6.18, kernel6.18-devel (ALAS2023-2026-1596)	Nessus	Amazon Linux Local Security Checks	4/30/2026	6/17/2026	high

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