Permissive Cross-domain Policy with Untrusted Domains Affecting org.apache.camel:camel-platform-http-vertx package, versions [4.0.0,4.18.5)[4.19.0,4.22.1)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published22 Oct 2026
- disclosed19 Oct 2026
- creditClaude Security
Introduced: 19 Oct 2026
NewCVE-2026-84176 (opens in a new tab)How to fix?
Upgrade org.apache.camel:camel-platform-http-vertx to version 4.18.5, 4.22.1 or higher.
Overview
Affected versions of this package are vulnerable to Permissive Cross-domain Policy with Untrusted Domains via the createCorsHandler() method in the Platform HTTP Vertx component. When CORS is enabled and camel.server.cors.origins is unset, an attacker can make a page on any origin send credentialed cross-origin requests and read the responses, exposing data available to the user's credentials.
Notes
- The browser-request step requires a user to visit the attacker-controlled page while authenticated to the Camel endpoint; the attack reads data available to that user’s credentials.
Workarounds
- Set
camel.server.cors.originsto an explicit list of trusted origins instead of leaving it unset. This prevents the handler from reflecting arbitrary origins, limiting credentialed cross-origin access to the origins you list.