{"id":"CVE-2026-55177","title":"CloudTAK is a browser-based Common Operating Picture and situational awareness tool compatible with TAK","summary":"CloudTAK is a browser-based Common Operating Picture and situational awareness tool compatible with TAK. Prior to version 13.10.0, every route in the ESRI helper family (api/routes/esri.ts) takes a fully attacker-controlled URL from the …","severity":"high","cvss":7.6,"cvssVector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","cwe":["CWE-918"],"vendor":"dfpc-coe","product":"CloudTAK","affected":["CloudTAK < 13.10.0"],"patched":["@tak-ps/cloudtak 13.10.0"],"published":"2026-09-30","updated":"2026-09-30","sourceUpdated":"2026-09-30T20:17:33.477","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-55177","references":[{"url":"https://github.com/dfpc-coe/CloudTAK/releases/tag/v13.10.0","label":"security-advisories@github.com"},{"url":"https://github.com/dfpc-coe/CloudTAK/security/advisories/GHSA-r95q-fp26-h3hc","label":"security-advisories@github.com"},{"url":"https://github.com/dfpc-coe/CloudTAK/security/advisories/GHSA-r95q-fp26-h3hc","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://github.com/advisories/GHSA-r95q-fp26-h3hc"}],"tags":["nvd","cve.org","exploit-available","ghsa","npm"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"total","timestamp":"2026-09-30T19:32:16.314025Z"},"cvssSource":"cna","aliases":["GHSA-r95q-fp26-h3hc"],"ecosystem":"npm","ingestedAt":"2026-07-17T22:16:59.695Z","epss":0.0038,"epssPercentile":0.318,"slug":"CVE-2026-55177","body":"## Overview\n\nCloudTAK is a browser-based Common Operating Picture and situational awareness tool compatible with TAK. Prior to version 13.10.0, every route in the ESRI helper family (api/routes/esri.ts) takes a fully attacker-controlled URL from the request (POST /api/esri body url, and the portal / server / layer query parameters on the GET /api/esri/* routes) and passes it into EsriBase / EsriProxyPortal / EsriProxyServer / EsriProxyLayer in api/lib/esri.ts, which fetch it with the bare fetch from @tak-ps/etl. No IP / DNS / hostname classification is applied at any point, so the destination is never validated against private, loopback, or link-local ranges. Any authenticated user (the routes only require Auth.is_auth(config, req, { anyResources: true }), i.e. any token, not an admin) can therefore make the CloudTAK server issue arbitrary outbound GET/POST requests to internal addresses such as the cloud instance-metadata service (169.254.169.254), loopback admin ports (127.0.0.1:<port>), and other hosts reachable only from inside the deployment VPC. This is a full-read SSRF, not blind: on success the upstream JSON body is returned to the caller via res.json(...), and on failure the upstream error string is reflected verbatim as ESRI Server Error: <message>. An attacker can read cloud metadata (and the temporary IAM credentials the instance role exposes), enumerate internal services, and exfiltrate their response bodies. The sniff() URL classifier provides no protection: it only pattern-matches the pathname (/rest, /arcgis/rest, /sharing/rest), so a URL like http://169.254.169.254/arcgis/rest or http://127.0.0.1:8500/rest passes sniff() and is fetched. This issue has been patched in version 13.10.0.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-55177)\n\nAffected packages:\n\n- `@tak-ps/cloudtak < 13.10.0`\n\nPatched in:\n\n- `@tak-ps/cloudtak 13.10.0`\n\nSource: https://github.com/advisories/GHSA-r95q-fp26-h3hc","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":41.8,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":213958,"id":"CVE-2026-55177","ts":1790799891561,"field":"exploit_available","old":"false","new":"true"},{"seq":213812,"id":"CVE-2026-55177","ts":1790788631109,"field":"cvss","old":null,"new":"7.6"}]}