Bug 2555516 (CVE-2026-85313)

Summary: CVE-2026-85313 org.apache.camel/camel-jetty: Apache Camel Jetty: Information disclosure via overly permissive CORS configuration
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Priority: medium    
Version: unspecifiedCC: gmalinko, janstey, pdelbell, rstepani
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Hardware: All   
OS: Linux   
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A flaw was found in Apache Camel's Jetty component. When Cross-Origin Resource Sharing (CORS)—a mechanism that controls how web applications access resources from other domains—is enabled on an endpoint, the component applies an insecure default policy that permits requests from any domain with credentials. A remote attacker can exploit this issue by tricking an authenticated user into visiting a malicious website, enabling the attacker to issue unauthorized requests to the endpoint and access sensitive information.
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Description OSIDB Bzimport 2026-10-19 10:53:59 UTC
Permissive Cross-domain Policy with Untrusted Domains vulnerability in Apache Camel Jetty component.

This issue affects Apache Camel: from 4.0.0 before 4.18.5, from 4.19.0 before 4.22.1.

Setting enableCORS on a Jetty endpoint installed Jetty's CrossOriginFilter with its stock defaults, which accept every origin and allow credentials. An operator asking for CORS therefore obtained a policy that lets a page on any origin make credentialed cross-origin requests to the endpoint and read the responses, without any indication that turning the option on had chosen an allow-all policy rather than an empty one to be filled in. This is the same defect class as the platform-http-vertx advisory published alongside it, in a different component.

Upgrade to Apache Camel 4.23.0, which fixes the issue. Users on the 4.18.x LTS releases stream should upgrade to 4.18.5. Users on the 4.22.x LTS releases stream should upgrade to 4.22.1. enableCORS no longer grants credentials to an origin the operator did not name. A deployment that relied on any origin being accepted must now list its origins explicitly. For deployments that cannot upgrade immediately, configure the CrossOriginFilter parameters explicitly rather than relying on what enableCORS installs, naming the allowed origins.