CVE-2026-67585

Allocation of Resources Without Limits or Throttling vulnerability in DivvyPayHQ absinthefederation allows an unauthenticated remote attacker to abort the Erlang VM via crafted entities representation keys. Every key of every object in the representations argument of the federation-mandated...

CVE-2026-55734 guardian atom exhaustion in Guardian.Permissions.encode_permissions!/1

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-2026-55734

CVE-2026-55734 affects ueberauth Guardian before 2.4.1. The bug is in Guardian.Permissions.encode_permissions!/1 (and related encode_permissions_into_claims!/2/do_encode_permissions!/2) where each key in a supplied map is turned into an atom via String.to_atom(to_string(k)) before validation. If ...

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...

Tesla vulnerable to atom exhaustion via untrusted URL scheme

Summary In the Mint adapter for the Tesla HTTP client library, Tesla.Adapter.Mint.openconn/2 passes the URL scheme of every outgoing request through String.toatom/1 with no allow-list validation. Because BEAM atoms are permanent never garbage-collected and the atom table is bounded at roughly...

PT-2026-53684

Name of the Vulnerable Software and Affected Versions leandrocp MDEx versions 0.4.3 through 0.13.1 Description An excessive allocation issue exists when the MDEx.parse document/2 function accepts a :json, json source. The private json to node/1 function passes an attacker-controlled node type val...

EEF-CVE-2026-48853 Remote code execution and denial of service via unsafe Erlang term deserialization in elixir-grpc/grpc

Summary Deserialization of Untrusted Data and Allocation of Resources Without Limits or Throttling vulnerabilities in elixir-grpc grpc allow unauthenticated attackers to crash the BEAM node via atom table exhaustion and, when a decoded term flows into a call site that invokes it, achieve remote...

EUVD-2026-37015

Deserialization of Untrusted Data and Allocation of Resources Without Limits or Throttling vulnerabilities in elixir-grpc grpc allow unauthenticated attackers to crash the BEAM node via atom table exhaustion and, when a decoded term flows into a call site that invokes it, achieve remote code...

CVE-2026-53423

Allocation of Resources Without Limits or Throttling vulnerability in membraneframework membranemp4plugin allows unauthenticated denial-of-service via BEAM atom table exhaustion. The MP4 box header parser converts each 4-byte box name to an atom using String.toatom/1 without validation...

CVE-2026-48597

Allocation of Resources Without Limits or Throttling vulnerability in elixir-tesla tesla allows denial of service via atom table exhaustion in Tesla.Adapter.Mint. Tesla.Adapter.Mint.openconn/2 converts the URL scheme of every outgoing request to a BEAM atom via String.toatomuri.scheme with no...

CVE-2026-48597

Allocation of Resources Without Limits or Throttling vulnerability in elixir-tesla tesla allows denial of service via atom table exhaustion in Tesla.Adapter.Mint. Tesla.Adapter.Mint.openconn/2 converts the URL scheme of every outgoing request to a BEAM atom via String.toatomuri.scheme with no...

CVE-2026-48597 Atom table exhaustion via untrusted URL scheme in Tesla.Adapter.Mint

Allocation of Resources Without Limits or Throttling vulnerability in elixir-tesla tesla allows denial of service via atom table exhaustion in Tesla.Adapter.Mint. Tesla.Adapter.Mint.openconn/2 converts the URL scheme of every outgoing request to a BEAM atom via String.toatomuri.scheme with no...

CVE-2026-47067

Allocation of Resources Without Limits or Throttling vulnerability in benoitc hackney allows Flooding. The URL parser in src/hackneyurl.erl converts every unrecognized URL scheme to a permanent BEAM atom via binarytoatom/2. BEAM atoms are never garbage-collected and the atom table defaults to a...

EEF-CVE-2026-47067 Atom table exhaustion via unrecognized URL schemes in hackney

Summary Allocation of Resources Without Limits or Throttling vulnerability in benoitc hackney allows Flooding. The URL parser in src/hackney\url.erl converts every unrecognized URL scheme to a permanent BEAM atom via binary\to\atom/2. BEAM atoms are never garbage-collected and the atom table...

PT-2026-43065

Name of the Vulnerable Software and Affected Versions hackney versions 2.0.0 through 4.0.0 Description An issue in the URL parser within src/hackney url.erl allows for resource exhaustion. The parser uses the binary to atom/2 function to convert unrecognized URL schemes into permanent BEAM atoms...

EEF-CVE-2026-8469 Unauthenticated denial-of-service via BEAM atom table exhaustion in phoenix_storybook

Summary Allocation of Resources Without Limits or Throttling vulnerability in phenixdigital phoenix\storybook allows unauthenticated denial-of-service via BEAM atom table exhaustion. Multiple LiveView event handlers convert user-supplied event parameter strings to atoms using String.to\atom/1...

CVE-2026-42793 Atom table exhaustion via attacker-controlled GraphQL SDL names in absinthe

Allocation of Resources Without Limits or Throttling vulnerability in absinthe-graphql absinthe allows unauthenticated denial of service via atom table exhaustion when parsing attacker-controlled GraphQL SDL. Multiple Blueprint.Draft.convert/2 implementations in Absinthe's SDL language modules ca...

GHSA-Q8X4-X7MP-5VG2 Plug.Cowboy vulnerable to unauthenticated remote DoS via HTTP/2 `:scheme` atom-table exhaustion

Summary An unauthenticated remote denial-of-service vulnerability in Plug.Cowboy.Conn allows any attacker who can reach an HTTPS Plug.Cowboy listener via HTTP/2 to permanently exhaust the BEAM atom table and crash the entire Erlang VM. Am I Affected? All users running plugcowboy with HTTP/2 may b...

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

Allocation of Resources Without Limits or Throttling vulnerability in elixir-plug plugcowboy allows unauthenticated remote denial of service via atom table exhaustion. Plug.Cowboy.Conn.conn/1 in lib/plug/cowboy/conn.ex calls String.toatom/1 on the value returned by :cowboyreq.scheme/1. For HTTP/2...

CVE-2026-34593

Ash Framework is a declarative, extensible framework for building Elixir applications. Prior to version 3.22.0, Ash.Type.Module.castinput/2 unconditionally creates a new Erlang atom via Module.concatvalue for any user-supplied binary string that starts with "Elixir.", before verifying whether the...