Critical, CVSS 9.1MavenPublished
Apache Camel-Solr: The SolrParam. and SolrField. Exchange header prefixes used non-Camel-prefixed names that bypass the HTTP header filter, allowing an HTTP client to inject Solr query parameters…
CVE-2026-48203 · GHSA-4h4f-v54q-7pq8
- Affected
- Maven org.apache.camel:camel-solr >= 4.0.0, < 4.14.8; >= 4.15.0, < 4.18.3; >= 4.19.0, < 4.21.0
- Fixed in
- 4.21.04.14.84.18.3· Vendor fix available
- Issue
- Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection'), Improper Input Validation, Server-Side Request Forgery (SSRF) vulnerability in Apache Camel Solr component. The camel-solr producer copies Exchange message headers whose names begin with the SolrParam. prefix into the parameters of the Solr request, and headers whose names begin with the SolrField. prefix into the fields of the indexed Solr document. The prefix constants (SolrConstants.HEADERPARAMPREFIX / HEADERFIELDPREFIX) were the plain strings SolrParam. / SolrField.. Because these names do not start with the Camel / camel prefix, HttpHeaderFilterStrategy - which blocks only the Camel header namespace on the HTTP boundary - let them pass from an inbound HTTP request straight into the Exchange. In a route that bridges an HTTP consumer (for example platform-http) into a solr: producer, any HTTP client could therefore set SolrParam. headers to inject arbitrary Solr request parameters -…
Recommended action: Upgrade to 4.21.0, 4.18.3 or 4.14.8 by release line, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.