CVE-2026-54894

CVE-2026-54894 affects guardian: from 0.1.0 before 2.4.1. The issue arises when Guardian.Plug.Keys converts attacker-controlled binaries into atoms via String.to_atom/1, creating permanent atoms (e.g., "guardian_") and a second atom for keys mustered by claims_key/resource_key/token_key. Since at...

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...