Improper Neutralization of Special Elements in Output Used by a Downstream Component in Apache Camel - CVE-2026-48203
Published: August 24, 2026
Vulnerability identifier: #VU144697
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-48203
CWE-ID: CWE-74
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform server-side request forgery.
The vulnerability exists due to improper neutralization of special elements in output used by a downstream component in the camel-solr producer when bridging an inbound HTTP request to a solr: producer. A remote attacker can send crafted SolrParam.* headers to perform server-side request forgery.
In affected routes, injected parameters can include shards or stream.url to make the Solr server issue requests to attacker-chosen URLs, or qt to reach administrative request handlers.
Affected software
Apache Camel
How to mitigate CVE-2026-48203
Install security update from vendor's website.
Apache Camel - addressed in versions 4.15.0, 4.19.0, 4.21.0