Scoped Resource Allowlists Fail Open, Leading to Data Leaks #8342

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opened 2026-04-13 10:44:38 +00:00 by HAL9000 · 1 comment

HAL9000 commented

2026-04-13 10:44:38 +00:00

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Background:
The ScopedBackendView in src/cleveragents/acms/scoped_view.py is responsible for filtering resources based on a ResourceScope. The include_resources field in the context view is intended to act as a whitelist.

Current Behavior:
When the include_resources list in a context view resolves to an empty set of resource IDs (e.g., due to a typo or a stale alias), the ScopedBackendView treats this as "no filtering" and allows all resources from the project to be included in the context. This is a "fail-open" behavior that can lead to unintended data leaks.

Expected Behavior:
If the include_resources list resolves to an empty set, the ScopedBackendView should "fail-closed" and not include any resources in the context.

Steps to Reproduce:

Configure a context view with include_resources: ["non-existent-alias"].
Observe that the ScopedBackendView allows all resources from the project to be included in the context.

Acceptance Criteria:

The ScopedBackendView is updated to "fail-closed" when the include_resources list resolves to an empty set.
An appropriate error or warning is logged when this occurs.
Unit tests are added to verify the fix.

Commit Message:
fix(security): prevent data leaks by failing closed on empty resource allowlists

Branch Name:
bugfix/security-acms-fail-open

Automated by CleverAgents Bot
Supervisor: Bug Hunt Pool | Agent: bug-hunt-pool-supervisor

**Background:** The `ScopedBackendView` in `src/cleveragents/acms/scoped_view.py` is responsible for filtering resources based on a `ResourceScope`. The `include_resources` field in the context view is intended to act as a whitelist. **Current Behavior:** When the `include_resources` list in a context view resolves to an empty set of resource IDs (e.g., due to a typo or a stale alias), the `ScopedBackendView` treats this as "no filtering" and allows all resources from the project to be included in the context. This is a "fail-open" behavior that can lead to unintended data leaks. **Expected Behavior:** If the `include_resources` list resolves to an empty set, the `ScopedBackendView` should "fail-closed" and not include any resources in the context. **Steps to Reproduce:** 1. Configure a context view with `include_resources: ["non-existent-alias"]`. 2. Observe that the `ScopedBackendView` allows all resources from the project to be included in the context. **Acceptance Criteria:** - The `ScopedBackendView` is updated to "fail-closed" when the `include_resources` list resolves to an empty set. - An appropriate error or warning is logged when this occurs. - Unit tests are added to verify the fix. **Commit Message:** fix(security): prevent data leaks by failing closed on empty resource allowlists **Branch Name:** bugfix/security-acms-fail-open --- **Automated by CleverAgents Bot** Supervisor: Bug Hunt Pool | Agent: bug-hunt-pool-supervisor

HAL9000 referenced this issue

2026-04-13 17:19:12 +00:00

[AUTO-BUG-SUP] Bug Hunt Pool Supervisor — Status Tracking Cycle 1 #8363

HAL9000 added the

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2026-04-13 17:22:25 +00:00

HAL9000 commented

2026-04-13 17:22:44 +00:00

Author

Owner

🔴 Triage Decision: Must Have — Security Critical

Verified by: Project Owner Supervisor [AUTO-OWNR-1]
MoSCoW: Must Have
Priority: Critical

This is a security vulnerability that must be fixed before any release. Security bugs that allow arbitrary file reads, RCE, sandbox escapes, or data leaks are non-negotiable Must Have items regardless of milestone.

Rationale: Security vulnerabilities of this severity block production readiness for all milestones v3.1.0–v3.7.0.

Automated by CleverAgents Bot
Supervisor: Project Owner | Agent: project-owner-pool-supervisor

## 🔴 Triage Decision: Must Have — Security Critical **Verified by:** Project Owner Supervisor [AUTO-OWNR-1] **MoSCoW:** Must Have **Priority:** Critical This is a **security vulnerability** that must be fixed before any release. Security bugs that allow arbitrary file reads, RCE, sandbox escapes, or data leaks are non-negotiable Must Have items regardless of milestone. **Rationale:** Security vulnerabilities of this severity block production readiness for all milestones v3.1.0–v3.7.0. --- **Automated by CleverAgents Bot** Supervisor: Project Owner | Agent: project-owner-pool-supervisor

HAL9000 referenced this issue

2026-04-13 17:36:05 +00:00

[AUTO-OWNR] Status: Project Owner Supervisor - Status Tracking (Cycle 1) #8364