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CVE PROGRAM SOURCE RECORD5.9 Medium

CVE-2026-78228

Unbounded handle_error recursion enables denial of service in AshOban triggers

Description

Uncontrolled Recursion vulnerability in ash-project ash_oban allows a user who can drive a trigger's on_error action to fail on the final attempt to exhaust worker CPU and memory, denying service. The generated worker's atomic handle_error/4 runs the trigger's on_error action on a job's final attempt inside a rescue that, when the action itself raises, calls handle_error/4 again with the same job. The job's attempt still equals max_attempts, so it re-enters the same clause and re-runs the failing action, with no exit. Any deterministic on_error failure (a data-layer outage, a misconfigured action, or a record the action rejects) loops forever; because the recursive call is not in tail position, each iteration retains a formatted stacktrace and the process heap grows without bound while the failing statement is re-issued against the data layer until the runtime kills the worker. This issue affects ash_oban: from 0.8.0-rc.1 before 0.8.14.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

ash-project ash_oban

Default version status: unaffected

  • 0.8.0-rc.1 to < 0.8.14affected
pkg:hex/ash_oban

ash-project ash_oban

Default version status: unaffected

  • 5d117ed2006df7277561c69dbfd39281da6ace9f to < 851cd0e76ed882bf736fc48d10f96d037e26b5f0affected
pkg:github/ash-project/ash_oban

References