Vulnerability · Published Oct 19, 2026 · Assigned by apache
CVE-2026-85246Apache Camel: Camel-Mina Information Disclosure via Unmuted Consumer Exceptions
Medium 5.3
In plain English
A medium-severity security flaw in Apache Camel from Apache Software Foundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 50% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.
Official description
Generation of Error Message Containing Sensitive Information vulnerability in Apache Camel Mina component. This issue affects Apache Camel: from 4.0.0 before 4.18.5, from 4.19.0 before 4.22.1. When processing of an exchange failed, the Mina consumer wrote exchange.getException() straight back over the socket to the remote peer. Over a textline codec that hands the peer the exception's class name and message; over the object codec it hands over the serialised exception, cause chain included. A remote peer able to provoke a failure could therefore read internal detail about the deployment - class and package names, and whatever a message or nested cause happens to carry, which in practice can include paths, host names and connection detail. The consumer had no option to suppress this, unlike the HTTP-family consumers aligned by CAMEL-23651. 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. A muteException consumer option, defaulting to true, replaces the route exception with a generic one carrying no class name, message or stack trace, while still writing a reply so that a synchronous peer is not left to time out. Set muteException=false to restore the previous behaviour. For deployments that cannot upgrade immediately, add an onException handler that sets the reply body explicitly, so the framework never writes the exception back to the peer.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Apache Software Foundation | Apache Camel | 4.0.0 – before 4.18.54.19.0 – before 4.22.1 |
Weakness: CWE-209 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
References
- Apache Camel Security Advisory - CVE-2026-85246 vendor-advisory
- CAMEL-24476 issue-tracking
- Fix on main, released in 4.23.0 (commit 7af3e74d8448b5f1c6620bbae44d766e3f440704) patch
- Backport to camel-4.22.x, released in 4.22.1 (commit 9a6e8222085ed12f73ce76f826aeb69e9d111ff8) patch
- Backport to camel-4.18.x, released in 4.18.5 (commit e6986906e41b3e537d3a5d278525bc09b78b4127) patch