EEF-CVE-2026-8469
- Source
- https://cna.erlef.org/osv/EEF-CVE-2026-8469.html
- Import Source
- https://cna.erlef.org/osv/EEF-CVE-2026-8469.json
- JSON Data
- https://api.osv.dev/v1/vulns/EEF-CVE-2026-8469
- Aliases
-
- CVE-2026-8469
- GHSA-833p-95jq-929q
- Published
- 2026-05-20T13:35:27.914Z
- Modified
- 2026-05-20T13:56:23.185014232Z
- Severity
-
- 8.2 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- Unauthenticated denial-of-service via BEAM atom table exhaustion in phoenix_storybook
- Details
-
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.toatom/1 without validation: 'Elixir.PhoenixStorybook.ExtraAssignsHelpers':handlesetvariationassign/3 interns every key of the psb-assign params map; 'Elixir.PhoenixStorybook.ExtraAssignsHelpers':handletogglevariationassign/3 interns the "attr" value from psb-toggle events; 'Elixir.PhoenixStorybook.ExtraAssignsHelpers':tovariationid/2 interns elements of "variationid"; and 'Elixir.PhoenixStorybook.ExtraAssignsHelpers':to_value/4 interns raw string values for attributes declared as :atom or :boolean. BEAM atoms are never garbage-collected, so each unique attacker-controlled string is a permanent allocation. Once the atom table ceiling (~1,048,576 atoms) is reached, the entire BEAM node aborts, taking down all applications running on it.
This issue affects phoenix_storybook from 0.2.0 before 1.1.0.
Configuration
Phoenix Storybook must be mounted on a network-reachable route.
- Database specific
{ "cwe_ids": [ "CWE-770" ], "capec_ids": [ "CAPEC-130" ], "cpe_ids": [ "cpe:2.3:a:phenixdigital:phoenix_storybook:*:*:*:*:*:*:*:*" ] }- References
- Credits
-
-
- Peter Ullrich - FINDER
-
- Christian Blavier - REMEDIATION_DEVELOPER
-
- Jonatan Männchen - ANALYST
-
Affected packages
Hex / phoenix_storybook
Package
- Name
- phoenix_storybook
- Purl
- pkg:hex/phoenix_storybook