CVE-2026-18918
Description
In Eclipse Lyo versions 2.0.0 to 7.0.0, OAuth server authorization checks can be bypassed when the 2-legged auth is supported by the server. In those cases, application that based their authz filters upon Lyo-provided `AbstractAdapterCredentialsFilter`, are vulnerable. An attacked can create a provisional trusted client (valid use-case) but then it can be used as a trusted client immediately without requiring the administrator approval to clear the provisional status. The 3-legged path requiring user interaction is not vulnerable and rejects provisional clients.
How to fix
- Eclipse Foundation Eclipse Lyo7.0.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Eclipse Foundation Eclipse Lyo | 2.0.0 ≤ v < 7.0.0 | 7.0.0 |
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