elixir-plug plug cowboy vulnerabilities

Latest elixir-plug plug cowboy CVEs

Newest publication first

1. CVE-2026-32688 Atom table exhaustion via HTTP/2 :scheme pseudo-header in plug_cowboy

   Published 2026-04-27

   High·CVSS 8.7

   Allocation of Resources Without Limits or Throttling vulnerability in elixir-plug plug_cowboy allows unauthenticated remote denial of service via atom table exhaustion. Plug.Cowboy.Conn.conn/1 in lib/plug/cowboy/conn.ex calls String.to_atom/1 on the value returned by :cowboy_req....

Sources: CVE.org, NVD, CISA KEV, FIRST EPSS, OSV and public exploit-reference metadata. Product matching comes from the published CVE records. A proof-of-concept means public code exists; it is not evidence of exploitation.