{"id":"CVE-2026-71495","aliases":["EUVD-2026-118398","GHSA-7vqq-mjjr-h9j5"],"status":"published","title":"Wanderer: SSRF Vulnerability in /api/v1/trail/download - Unvalidated URL Leads to Internal Network Access","description":"Wanderer is a self-hosted trail database for saving and sharing adventures. Prior to 0.20.0, when PUBLIC_PRIVATE_INSTANCE is not set to true, the unauthenticated POST /api/v1/trail/download handler passes the attacker-controlled JSON url field directly to event.fetch() and returns the fetched response. This allows requests to internal services such as db:8090 and search:7700, cloud metadata addresses, and other network destinations, exposing returned data and permitting internal network reconnaissance or denial of service. This issue is fixed in version 0.20.0.","severity":{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-14","score":0.00336,"percentile":0.27418,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-918"],"published":"2026-11-06T18:05:05Z","modified":"2026-11-09T13:13:13Z","products":[{"vendor":"open-wanderer","product":"wanderer"}],"references":[{"url":"https://github.com/open-wanderer/wanderer/security/advisories/GHSA-7vqq-mjjr-h9j5","tags":["x_refsource_CONFIRM","exploit","advisory"]},{"url":"https://github.com/open-wanderer/wanderer/pull/1104","tags":["x_refsource_MISC","fix"]},{"url":"https://github.com/open-wanderer/wanderer/commit/c371337b3db1d2895b5cad651046ef0ad4dfc802","tags":["x_refsource_MISC","fix"]},{"url":"https://github.com/open-wanderer/wanderer/releases/tag/v0.20.0","tags":["x_refsource_MISC","web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/71xxx/CVE-2026-71495.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-71495","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-71495","title":"Wanderer: SSRF Vulnerability in /api/v1/trail/download - Unvalidated URL Leads to Internal Network Access","description":"Wanderer is a self-hosted trail database for saving and sharing adventures. Prior to 0.20.0, when PUBLIC_PRIVATE_INSTANCE is not set to true, the unauthenticated POST /api/v1/trail/download handler passes the attacker-controlled JSON url field directly to event.fetch() and returns the fetched response. This allows requests to internal services such as db:8090 and search:7700, cloud metadata addresses, and other network destinations, exposing returned data and permitting internal network reconnaissance or denial of service. This issue is fixed in version 0.20.0.","status":"published","published":"2026-11-06T18:05:05.676Z","modified":"2026-11-09T13:13:13.185Z","cvss":[{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-918"],"updated_at":"2026-11-09T14:33:34.013968Z"}],"euvd":[{"id":"EUVD-2026-118398","description":"Wanderer is a self-hosted trail database for saving and sharing adventures. Prior to 0.20.0, when PUBLIC_PRIVATE_INSTANCE is not set to true, the unauthenticated POST /api/v1/trail/download handler passes the attacker-controlled JSON url field directly to event.fetch() and returns the fetched response. This allows requests to internal services such as db:8090 and search:7700, cloud metadata addresses, and other network destinations, exposing returned data and permitting internal network reconnaissance or denial of service. This issue is fixed in version 0.20.0.","status":"published","published":"2026-11-06T18:05:05Z","modified":"2026-11-09T13:13:13Z","cvss":[{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:H","level":"critical"}],"updated_at":"2026-11-09T15:17:14.840893Z"}],"nvd":[{"id":"CVE-2026-71495","description":"Wanderer is a self-hosted trail database for saving and sharing adventures. Prior to 0.20.0, when PUBLIC_PRIVATE_INSTANCE is not set to true, the unauthenticated POST /api/v1/trail/download handler passes the attacker-controlled JSON url field directly to event.fetch() and returns the fetched response. This allows requests to internal services such as db:8090 and search:7700, cloud metadata addresses, and other network destinations, exposing returned data and permitting internal network reconnaissance or denial of service. This issue is fixed in version 0.20.0.","status":"published","published":"2026-11-06T19:17:56.657Z","modified":"2026-11-12T22:18:51.47Z","cvss":[{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-918"],"updated_at":"2026-11-09T16:14:55.273195Z"}],"osv":[{"id":"CVE-2026-71495","title":"Wanderer: SSRF Vulnerability in /api/v1/trail/download - Unvalidated URL Leads to Internal Network Access","description":"Wanderer is a self-hosted trail database for saving and sharing adventures. Prior to 0.20.0, when PUBLIC_PRIVATE_INSTANCE is not set to true, the unauthenticated POST /api/v1/trail/download handler passes the attacker-controlled JSON url field directly to event.fetch() and returns the fetched response. This allows requests to internal services such as db:8090 and search:7700, cloud metadata addresses, and other network destinations, exposing returned data and permitting internal network reconnaissance or denial of service. This issue is fixed in version 0.20.0.","status":"published","published":"2026-11-06T18:05:05.676Z","modified":"2026-11-14T02:30:26.130939582Z","cvss":[{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:H","level":"critical"}],"cwes":["CWE-918"],"updated_at":"2026-11-08T03:29:52.421856Z"}]}}