CVE-2026-55733

Allocation of Resources Without Limits or Throttling in ueberauth guardian allows denial of service via unbounded atom creation from attacker-controlled binary input. Guardian.Permissions.AtomEncoding encodes permission scopes by passing arbitrary binaries to String.toatom/1. When encode/3 in...

CVE-2026-55734

Allocation of Resources Without Limits or Throttling vulnerability in ueberauth guardian Guardian.Permissions module allows a denial of service via BEAM atom-table exhaustion. This vulnerability is associated with program file lib/guardian/permissions.ex and program routines...

CVE-2026-55733

The CVE details a denial-of-service in ueberauth guardian via Guardian.Permissions.AtomEncoding: attacker-controlled binary input fed into encode/3 leads to String.to_atom/1 creating unlimited atoms, exhausting BEAM’s atom table (≈1,048,576 entries) and crashing the node. Affected versions: guard...

CVE-2026-54894 Atom-table exhaustion denial of service in Guardian via unbounded atom creation from binary keys

Allocation of Resources Without Limits or Throttling in ueberauth guardian allows denial of service via unbounded atom creation from attacker-influenced binary input. Guardian.Plug.Keys derives connection and session namespace keys by passing arbitrary binaries to String.toatom/1. basekey/1 in...

PhoenixStorybook: Unbounded atom creation from LiveView event params (atom-table DoS)

Summary An attacker who can deliver psb-assign, psb-toggle, psb-set-theme, upper-tab-navigation, lower-tab-navigation, playground-change, or playground-toggle LiveView events to a mounted Phoenix Storybook playground can flood the BEAM atom table with attacker-controlled strings, permanently...