Dozzle: Pre-auth SSRF with response-body reflection via POST /api/notifications/test-webhook (default no-auth deploy)

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What is CVE-2026-45298?

CVE-2026-45298 is a vulnerability classified as Server-Side Request Forgery (SSRF), affecting dozzle (affected versions: < 10.5.2). This vulnerability is rated High, with a CVSS score of 8.6. Public exploit code or evidence is available for this vulnerability, but that does not confirm exploitation in the wild.

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Overview

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Dozzle is a realtime log viewer for docker containers. Prior to 10.5.2, in a default dozzle deploy (the documented quickstart, no DOZZLE_AUTH_PROVIDER set), POST /api/notifications/test-webhook is reachable without authentication and forwards an attacker-controlled URL into a WebhookDispatcher that sends an HTTP POST to the supplied URL with attacker-controlled request headers, and returns the response status code AND up to 1MB of the response body to the caller, when the target replies non-2xx. This vulnerability is fixed in 10.5.2.

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Detection

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