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

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

CVE-2026-55734 affects guardian: from 2.0.0 before 2.4.1. The vulnerability lies in Guardian.Permissions.encode_permissions!/1 (Elixir) where each map key is converted to an atom via String.to_atom(to_string(k)) before validation. If a key has an integer value, the encoding path bypasses validati...

EUVD-2026-51917

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

CVE-2026-55733 concerns Guardian permissions AtomEncoding: when encoding permission scopes, external binary inputs are passed to String.to_atom/1 without allow-list checks, causing unbounded atom creation. Each unseen binary mints a permanent BEAM atom; the atom table is finite (~1,048,576 entrie...

CVE-2026-55733 Atom-table exhaustion denial of service in Guardian permissions AtomEncoding via unbounded atom creation

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...

EUVD-2026-8892

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, postsnearby was checking topic access but then returning all posts regardless of type, including whispers that should only be visible to whisperers. Use Post.securedguardian to properly filter po...

CVE-2026-27162

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, postsnearby was checking topic access but then returning all posts regardless of type, including whispers that should only be visible to whisperers. Use Post.securedguardian to properly filter po...