{"api_version":"1","generated_at":"2026-06-11T18:47:29+00:00","cve":"CVE-2026-53423","urls":{"html":"https://cve.report/CVE-2026-53423","api":"https://cve.report/api/cve/CVE-2026-53423.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-53423","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-53423"},"summary":{"title":"Unauthenticated denial-of-service via BEAM atom table exhaustion in membrane_mp4_plugin","description":"Allocation of Resources Without Limits or Throttling vulnerability in membraneframework membrane_mp4_plugin allows unauthenticated denial-of-service via BEAM atom table exhaustion.\n\nThe MP4 box header parser converts each 4-byte box name to an atom using String.to_atom/1 without validation. 'Elixir.Membrane.MP4.Container.Header':parse_box_name/1 in lib/membrane_mp4/container/header.ex interns every box name encountered while 'Elixir.Membrane.MP4.Container.Header':parse/1 walks the input. 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BEAM atoms are never garbage-collected, so each unique attacker-controlled 4-byte name is a permanent allocation. 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'Elixir.Membrane.MP4.Container.Header':parse_box_name/1 in lib/membrane_mp4/container/header.ex interns every box name encountered while 'Elixir.Membrane.MP4.Container.Header':parse/1 walks the input. BEAM atoms are never garbage-collected, so each unique attacker-controlled 4-byte name is a permanent allocation. A crafted MP4 of approximately 8 MB containing roughly 1.1 million boxes with distinct non-standard names exhausts the atom table (default ceiling around 1,048,576 atoms), aborting the entire BEAM node and taking down all applications running on it.\n\nThis issue affects membrane_mp4_plugin from 0.3.0 before 0.36.7.","Type":"Description","Title":"Unauthenticated denial-of-service via BEAM atom table exhaustion"}]}}}