The camel-mina component's MinaConverter.toObjectInput(IoBuffer) type converter wraps an IoBuffer in a java.io.ObjectInputStream without applying any ObjectInputFilter or class-loading restrictions. When a Camel route uses camel-mina as a TCP or UDP consumer and requests conversion to ObjectInput (for example via getBody(ObjectInput.class) or @Body ObjectInput), an attacker sending a crafted serialized Java object over the network to the MINA consumer port can trigger arbitrary code execution in the context of the application during readObject(). This issue affects Apache Camel: from 3.0.0 before 4.14.6, from 4.15.0 before 4.18.2, from 4.19.0 before 4.20.0. Users are recommended to upgrade to version 4.20.0, which fixes the issue. If users are on the 4.14.x LTS releases stream, then they are suggested to upgrade to 4.14.6. If users are on the 4.18.x releases stream, then they are suggested to upgrade to 4.18.2.
Fix
Public exploits 1
- oscerd/CVE-2026-40473 PoC on GitHub
Each line links to the index that lists it, never to exploit code. Exploit-DB's "verified" and a Metasploit rank of good or better count as verified; a PoC-in-GitHub entry is a repository's claim.
Patch, vendor advisory and mitigation references on NVD 1
- https://camel.apache.org/security/CVE-2026-40473.html Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 8.8 · apacheNVD modified 2026-10-26 21:10
Affected (CPE criteria) 2
cpe:2.3:a:apache:camel:*:*:*:*:*:*:*:*cpe:2.3:a:apache:camel:4.19.0:*:*:*:*:*:*:*
References 5
- https://camel.apache.org/security/CVE-2026-40473.html Vendor Advisory
- http://www.openwall.com/lists/oss-security/2026/04/26/8 Mailing List, Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2026-40473
- https://bugzilla.redhat.com/show_bug.cgi?id=2463180
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-40473.json