vulnerability / NVI-00018412 / Revision 1
Dozzle: Pre-auth SSRF with response-body reflection via POST /api/notifications/test-webhook (default no-auth deploy)
GitHub lists this reviewed advisory for github.com/amir20/dozzle. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.
This report has not inspected your inventory, configuration, deployed build, reachability or evidence. A catalog listing and a severity score do not establish exposure or compromise.
01 / Meaning
Why it matters
Published affected context helps an owner decide what evidence to gather. This report has not examined your application.
8.6 high
GitHub source severity; exploitability and local consequence require separate evidence.
As of · GitHub Advisory Database
02 / Applicability
The affected context
Affected versions, configuration prerequisites and known exclusions are public. Confirm each one against the deployed service.
github.com/amir20/dozzle
source listed<= 8.14.12
## Summary 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 is a classic full-reflection SSRF, pre-auth, against any IP/port that dozzle's host can route to — including private subnets, link-local cloud metadata, and loopback services. ## Affected versions `internal/notification/dispatcher/webhook.go` and `internal/web/notifications.go` at commit `581bab3a43ead84ea4d009a469a17af98fb3377f` and earlier (the test-webhook handler has been in place since the notifications subsystem was added). ## Default-deploy reachability chain ``` main.go:58-59 → enforces AuthProvider in {none, forward-proxy, simple} support/cli/args.go:18 → AuthProvider default is "none" main.go:231-243 → when AuthProvider == "none", web.AuthProvider stays at NONE internal/web/routes.go:130-132, 137-13
03 / Response
What to do next
- investigate
Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.
Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system. GitHub Advisory Database
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04 / Limits
What this report cannot establish
- Customer inventory, deployment, reachability and exploitation have not been inspected.
05 / Provenance
Sources you can inspect
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- GHSA-3v9w-6365-9w54 ↗
GitHub Advisory Database · vendor advisory
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Public revision history
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- Revision 1 ·
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