vulnerability / NVI-00015077 / Revision 1
Cosmos-Server's constellation public-devices endpoint accepts arbitrary bearer tokens
GitHub lists this reviewed advisory for github.com/azukaar/cosmos-server. 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
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5.3 medium
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/azukaar/cosmos-server
source listed= 0.22.18
### Summary `GET /cosmos/api/constellation/public-devices` discloses Constellation device metadata to a requester that supplies any non-empty `Authorization` header. The handler strips the string `Bearer ` from the header but never validates the resulting token and never uses it in the database query. This was confirmed locally by routing a request through the real `tokenMiddleware` with `Authorization: Bearer not-a-real-token`. The request returned public Constellation device metadata from a disposable fixture. A missing-header negative control returned `401 Unauthorized`, proving the bypass is specifically the acceptance of arbitrary bearer values. ### Details Source-to-sink path: - `src/httpServer.go:690` registers `/api/constellation/public-devices` on the authenticated admin API router. - `src/httpServer.go:815-817` applies `SecureAPI(..., public=false, ...)`, which runs `tokenMiddleware`. - `src/httpServer.go:231-237` only treats `Authorization: Bearer cosmos_...` as a Cosmos API token for validation. Other bearer strings are not validated by the middleware and fall through to the handler. - `src/constellation/api_devices_public.go:42-47` checks only that the `Authorizatio
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.
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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-5fqm-cc34-fcf5 ↗
GitHub Advisory Database · vendor advisory
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Public revision history
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- Revision 1 ·
First indexed by Null; source disclosure date is shown separately.