{"id":"CVE-2026-82722","summary":"AshAdmin LiveView events intern atoms from client input, exhausting the atom table (node DoS)","details":"Allocation of Resources Without Limits or Throttling vulnerability in ash-project ash_admin lets any client that can reach the admin LiveView exhaust the BEAM atom table and crash the entire node.\n\nTwo LiveView event handlers interned atoms from unvalidated client input: AshAdmin.PageLive's set_actor built modules from the resource/domain payload with Module.concat/1, and AshAdmin.Components.Resource.Show's calculate converted every submitted form key with String.to_atom/1. Atoms are never garbage collected and the table is capped, so flooding either event with random names mints a new atom per request until the VM aborts, taking down every application on the node. The fix resolves the submitted resource/domain against the known shown resources and maps calculation keys to declared arguments, so no client-supplied string is interned.\n\nThis issue affects ash_admin: from 0.1.0 before 1.3.1.","aliases":["EEF-CVE-2026-82722","GHSA-wcr6-9rrw-5jhv"],"modified":"2026-09-01T03:46:37.413392209Z","published":"2026-08-31T02:22:15.099Z","database_specific":{"cwe_ids":["CWE-770"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82722.json","unresolved_ranges":[{"extracted_events":[{"introduced":"98b03baa8422b94dd13e305bf08b8ee3f7232c7b"},{"fixed":"731dffa09416d68f4ad3a0b6ee146b285ca0083b"}],"source":"AFFECTED_FIELD"}],"cna_assigner":"EEF"},"references":[{"type":"WEB","url":"https://cna.erlef.org/cves/CVE-2026-82722.html"},{"type":"WEB","url":"https://github.com"},{"type":"WEB","url":"https://osv.dev/vulnerability/EEF-CVE-2026-82722"},{"type":"WEB","url":"https://repo.hex.pm"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82722.json"},{"type":"ADVISORY","url":"https://github.com/ash-project/ash_admin/security/advisories/GHSA-wcr6-9rrw-5jhv"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-82722"},{"type":"FIX","url":"https://github.com/ash-project/ash_admin/commit/731dffa09416d68f4ad3a0b6ee146b285ca0083b"},{"type":"PACKAGE","url":"https://github.com/ash-project/ash_admin"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/ash-project/ash_admin","events":[{"introduced":"d99db5e821f4eebd45b96a4ed169f949d43b69d6"},{"fixed":"91da87c1c23cd6199ba1b0a1c8849a4c605130cc"},{"fixed":"731dffa09416d68f4ad3a0b6ee146b285ca0083b"}],"database_specific":{"extracted_events":[{"introduced":"0.1.0"},{"fixed":"1.3.1"}],"source":["DESCRIPTION","REFERENCES"]}}],"versions":["v1.3.0","v1.2.0","v1.1.0","v0.14.0","v0.13.26","v0.13.25","v0.13.24","v0.13.23","v0.13.22","v0.13.21","v0.13.20","v0.13.19","v0.13.18","v0.13.17","v0.13.16","v0.13.15","v0.13.14","v0.13.13","v0.13.12","v0.13.11","v0.13.10","v0.13.9","v0.13.8","v0.13.7","v0.13.6","v0.13.5","v0.13.4","v0.13.3","v0.13.2","v0.13.0","v0.12.6","v0.12.5","v0.12.4","v0.12.3","v0.12.2","v0.12.1","v0.12.0","v0.11.11","v0.11.10","v0.11.9","v0.11.8","v0.11.7","v0.11.6","v0.11.4","v0.11.3","v0.11.2","v0.11.1","v0.10.10","v0.10.10-rc.1","v0.10.10-rc.0","v0.10.9","v0.10.8","v0.10.7","v0.10.6","v0.10.5","v0.10.4","v0.10.3","v0.10.2","v0.10.1","v0.10.0","v0.9.8","v0.9.7","v0.9.6","v0.9.5","v0.9.4","v0.9.2","v0.9.1","v0.9.0","v0.8.2","v0.8.1","v0.8.0","v0.7.1","v0.7.0","v0.6.2","v0.6.1","v0.6.0-rc.2","v0.6.0-rc.1","v0.6.0-rc.0","v0.5.2","v0.5.1-rc.0","v0.5.0","v0.4.5-rc.0","v0.4.4","v0.4.3","v0.4.2","v0.4.1","v0.4.0","v0.3.0-rc.0","v0.2.22","v0.2.21","v0.2.20","v0.2.19","v0.2.18","v0.2.17","v0.2.16-rc.1","v0.2.16-rc.0","v0.2.15","v0.2.14","v0.2.13","v0.2.12","v0.2.11","v0.2.10","v0.2.9","v0.2.8","v0.2.7","v0.2.6","v0.2.5","v0.2.4","v0.2.3","v0.2.2","v0.2.1","v0.2.0","v0.1.6","v0.1.5","v0.1.4","v0.1.3","v0.1.2","v0.1.1","v0.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-82722.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H"}]}