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

  - Improper Handling of Highly Compressed Data (Data Amplification) vulnerability in ninenines cowlib allows     unauthenticated remote denial of service via memory exhaustion. cow_spdy:inflate/2 in cowlib passes peer-     supplied compressed bytes directly to zlib:inflate/2 with no output size bound. The SPDY header     compression dictionary (?ZDICT) is public, and zlib compresses long runs of repeated bytes at roughly     1024:1, so a few kilobytes of SPDY frame payload can decompress to gigabytes on the BEAM heap, OOM-killing     the node. A single unauthenticated SPDY frame is sufficient to trigger the condition. The parsers for     syn_stream, syn_reply, and headers frame types are all affected via cow_spdy:parse_headers/2. This issue     affects cowlib from 0.1.0 before 2.16.1. (CVE-2026-43970)

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

Detections

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Linux Distros Unpatched Vulnerability : CVE-2026-43970

high Nessus Plugin ID 314739

Version 1.3

Version 1.1

Version 1.3 Jun 4, 2026, 6:39 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202606041839
Version 1.1 May 15, 2026, 12:01 PM New Plugin Feed: 202605151201