CVE-2026-108372 Details
Description
Open and provider-neutral, LoopX is a lightweight state kernel and local-first control plane for loop engineering. From version 0.0.1 until 0.4.5, `loopx serve-status` in `loopx/status_server.py` uses `StatusRequestHandler._send_json()` and `do_OPTIONS()` to send `Access-Control-Allow-Origin: *` for unauthenticated responses on predictable loopback ports. A remote attacker can cause an operator who visits attacker-controlled web content to issue cross-origin requests to `GET /status.json`, `GET /review-material?goal_id=...&path=...`, `GET /`, and `POST /control-plane/configure-goal/dry-run`, exposing control-plane state, goal and run information, local absolute paths, private Markdown files below registered goal roots, and dry-run configuration projections. The affected routes do not provide cross-origin writes or arbitrary-file access. This issue is fixed in version 0.4.5.
A Cross-Origin Resource Sharing (CORS) vulnerability has been identified in LoopX versions 0.0.1 prior to 0.4.5. The issue arises in the 'serve-status' command, where the status server improperly sends 'Access-Control-Allow-Origin: *' headers on unauthenticated responses. This misconfiguration allows remote attackers to exploit the status server by sending cross-origin requests from attacker-controlled web content. The exposed endpoints include 'GET /status.json', 'GET /review-material?goal_id=...&path=...', 'GET /', and 'POST /control-plane/configure-goal/dry-run'. The vulnerability allows access to sensitive control-plane state, goal and run information, local absolute paths, private Markdown files under registered goal roots, and dry-run configuration projections.
Users can upgrade to LoopX version 0.4.5, which addresses this vulnerability by removing the wildcard CORS header and implementing proper origin checks. Instructions for updating are available in the LoopX release notes.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 16, 2026CISA-ADP
Assessed Oct 21, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/loopx-project/loopx/security/advisories/GHSA-vx2m-gpq4-8j5q | CISA-ADP | AdvisoryRemedyVendor |
| https://github.com/loopx-project/loopx/commit/838720fba42bd22f71b5bb763ec406f7bdf4c940 | [email protected] | Source CodeVendor |
| https://github.com/loopx-project/loopx/pull/3137 | [email protected] | Issue TrackingSource CodeVendor |
| https://github.com/loopx-project/loopx/releases/tag/v0.4.5 | [email protected] | Release NotesVendor |
| https://github.com/loopx-project/loopx/security/advisories/GHSA-vx2m-gpq4-8j5q | [email protected] | AdvisoryRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-346 | Origin Validation Error | [email protected] |
| CWE-942 | Permissive Cross-domain Policy with Untrusted Domains | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| loopx | >= 0.0.1, < 0.4.5 (semver) |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 21, 2026 | CVE Modified | CISA-ADP |
| Oct 16, 2026 | New CVE Received | [email protected] |