{"id":"CVE-2026-108372","title":"LoopX serve-status permissive CORS policy exposes control-plane state and private Markdown files","summary":"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()` …","severity":"high","cvss":7.1,"cvssVector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","cvssSource":"cna","cwe":["CWE-346","CWE-942"],"vendor":"huangruiteng","product":"loopx","affected":["loopx >= 0.0.1, < 0.4.5"],"ssvc":{"exploitation":"poc","automatable":"yes","technicalImpact":"partial","timestamp":"2026-10-21T21:31:14.085436Z"},"exploitAvailable":true,"published":"2026-10-16","updated":"2026-10-21","sourceUpdated":"2026-10-21T21:31:36.971Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-108372","references":[{"url":"https://github.com/loopx-project/loopx/security/advisories/GHSA-vx2m-gpq4-8j5q","label":"https://github.com/loopx-project/loopx/security/advisories/GHSA-vx2m-gpq4-8j5q"},{"url":"https://github.com/loopx-project/loopx/pull/3137","label":"https://github.com/loopx-project/loopx/pull/3137"},{"url":"https://github.com/loopx-project/loopx/commit/838720fba42bd22f71b5bb763ec406f7bdf4c940","label":"https://github.com/loopx-project/loopx/commit/838720fba42bd22f71b5bb763ec406f7bdf4c940"},{"url":"https://github.com/loopx-project/loopx/releases/tag/v0.4.5","label":"https://github.com/loopx-project/loopx/releases/tag/v0.4.5"},{"url":"https://github.com/huangruiteng/loopx/security/advisories/GHSA-vx2m-gpq4-8j5q"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-108372"},{"url":"https://github.com/huangruiteng/loopx"},{"url":"https://github.com/advisories/GHSA-vx2m-gpq4-8j5q"}],"tags":["cve.org","exploit-available","osv","pip","ghsa"],"epss":0.00304,"epssPercentile":0.23046,"aliases":["GHSA-vx2m-gpq4-8j5q"],"ecosystem":"pip","patched":["loopx 0.4.5"],"ingestedAt":"2026-10-16T21:53:23.553Z","slug":"CVE-2026-108372","body":"## Overview\n\nOpen 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.\n\n## Affected\n\n- `loopx >= 0.0.1, < 0.4.5`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-108372)\n\nAffected packages:\n\n- `loopx >= 0.0.1, < 0.4.5`\n\nPatched in:\n\n- `loopx 0.4.5`\n\nSource: https://osv.dev/vulnerability/GHSA-vx2m-gpq4-8j5q","depth":"midnight","depthScore":51,"depthScoreParts":{"impact":39.1,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":227435,"id":"CVE-2026-108372","ts":1792621159547,"field":"exploit_available","old":"false","new":"true"}]}