CVE WatchNov 6, 2026

CVE-2026-71495

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

CVSS

10.0

Critical

EPSS

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KEV

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Exploit Today

0-100

Published: Nov 6, 2026 · Last modified: Nov 6, 2026 · CWE-918

EPSS · 30d

Not enough EPSS history yet.

Technical 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.

Official references

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