Unbounded handle_error recursion enables denial of service in AshOban triggers (CVE-2026-78228) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-78228

Unbounded handle_error recursion enables denial of service in AshOban triggers

Answer in brief

CVE-2026-78228 records a Unknown severity vulnerability in Unbounded handle_error recursion enables denial of service in AshOban triggers. The current sources do not mark it as known exploited. The current feed maps ash-project/ash_oban (generic), ash-project/ash_oban (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 30, 2026Updated Aug 30, 2026Source checked Aug 30, 2026First seen by HOL Aug 30, 2026Material review Aug 30, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps ash-project/ash_oban (generic), ash-project/ash_oban (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
ash-project/ash_obangeneric	>=0.8.0-rc.1 <0.8.14	0.8.14
ash-project/ash_obangeneric	>=5d117ed2006df7277561c69dbfd39281da6ace9f <851cd0e76ed882bf736fc48d10f96d037e26b5f0	851cd0e76ed882bf736fc48d10f96d037e26b5f0

Recommended response

Check inventory. Check lockfiles and deployed manifests for ash-project/ash_oban, ash-project/ash_oban.
Review the reported fix. Update ash-project/ash_oban to 0.8.14; ash-project/ash_oban to 851cd0e76ed882bf736fc48d10f96d037e26b5f0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Aug 30, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 30, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 30, 2026

Sources and claim methodology

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.