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CVE-2026-71495— Wanderer: SSRF Vulnerability in /api/v1/trail/download - Unvalidated URL Leads to Internal Network Access

Quick assessment

Affected
open-wanderer wanderer
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Wanderer 是一个用于保存和分享探险经历的自托管步道数据库。在 0.20.0 版本之前，当 未设置为 时，未认证的 处理程序会将攻击者控制的 JSON 字段 直接传递给 ，并返回获取到的响应。这使得攻击者能够向内部服务（如 和 ）、云元数据地址以及其他网络目标发起请求，从而泄露返回的数据，并允许进行内部网络侦察或造成拒绝服务攻击。该问题已在 0.20.0 版本中修复。

CVSS 10.0 · Critical

Affected Version Matrix 1

VendorProduct Version RangeStatus
open-wanderer wanderer < 0.20.0 affected
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I. Basic Information for CVE-2026-71495

Vulnerability Information
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Vulnerability Title
Wanderer: SSRF Vulnerability in /api/v1/trail/download - Unvalidated URL Leads to Internal Network Access
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
open-wanderer wanderer < 0.20.0 -

II. Public POCs for CVE-2026-71495

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III. Intelligence Information for CVE-2026-71495

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Other References for CVE-2026-71495 (4)

Same Patch Batch · open-wanderer · 2026-11-06 · 4 CVEs total

CVE-2026-62346 7.6 HIGH Wanderer: Stored XSS via waypoint.name and waypoint.icon in Elevation Profile innerHTML
CVE-2026-62345 7.6 HIGH Stored XSS via Unsanitized waypoint.icon in Map Marker (insertAdjacentHTML)
CVE-2026-62344 7.5 HIGH Wanderer: Unauthenticated Access to Private Trails and Comments via ActivityPub Endpoints

IV. Related Vulnerabilities

Same product: wanderer
Same vendor: open-wanderer
Same weakness: CWE-918