{"id":"CVE-2026-108372","state":"PUBLISHED","title":"LoopX serve-status permissive CORS policy exposes control-plane state and private Markdown files","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.","publishedAt":"2026-10-16T21:29:13.757Z","updatedAt":"2026-10-21T21:31:36.971Z","severity":{"score":7.1,"label":"High","version":"4.0","vector":"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","source":"GitHub_M"},"assigner":"GitHub_M","products":["huangruiteng loopx"],"affected":[{"vendor":"huangruiteng","product":"loopx","versions":[{"version":">= 0.0.1, < 0.4.5","status":"affected"}]}],"references":["https://github.com/loopx-project/loopx/security/advisories/GHSA-vx2m-gpq4-8j5q","https://github.com/loopx-project/loopx/pull/3137","https://github.com/loopx-project/loopx/commit/838720fba42bd22f71b5bb763ec406f7bdf4c940","https://github.com/loopx-project/loopx/releases/tag/v0.4.5"],"weaknesses":["CWE-346","CWE-942"],"ingestedAt":"2026-10-29T20:10:33.477Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/108xxx/CVE-2026-108372.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-108372","state":"PUBLISHED","datePublished":"2026-10-16T21:29:13.757Z","dateUpdated":"2026-10-21T21:31:36.971Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-10-09T21:36:27.042Z"},"containers":{"cna":{"title":"LoopX serve-status permissive CORS policy exposes control-plane state and private Markdown files","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"huangruiteng","product":"loopx","versions":[{"version":">= 0.0.1, < 0.4.5","status":"affected"}]}],"references":[{"url":"https://github.com/loopx-project/loopx/security/advisories/GHSA-vx2m-gpq4-8j5q","name":"https://github.com/loopx-project/loopx/security/advisories/GHSA-vx2m-gpq4-8j5q","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/loopx-project/loopx/pull/3137","name":"https://github.com/loopx-project/loopx/pull/3137","tags":["x_refsource_MISC"]},{"url":"https://github.com/loopx-project/loopx/commit/838720fba42bd22f71b5bb763ec406f7bdf4c940","name":"https://github.com/loopx-project/loopx/commit/838720fba42bd22f71b5bb763ec406f7bdf4c940","tags":["x_refsource_MISC"]},{"url":"https://github.com/loopx-project/loopx/releases/tag/v0.4.5","name":"https://github.com/loopx-project/loopx/releases/tag/v0.4.5","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"PASSIVE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":7.1,"baseSeverity":"HIGH","vectorString":"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","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-346","lang":"en","description":"CWE-346: Origin Validation Error","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-942","lang":"en","description":"CWE-942: Permissive Cross-domain Policy with Untrusted Domains","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-10-16T21:29:13.757Z"},"source":{"advisory":"GHSA-vx2m-gpq4-8j5q","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/loopx-project/loopx/security/advisories/GHSA-vx2m-gpq4-8j5q","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-21T21:31:14.085436Z","id":"CVE-2026-108372","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-21T21:31:36.971Z"}}]}}}