Unsafe Deserialization RCE in Apache Camel camel-infinispan ProtoStream Remote Aggregation Repository
CVE-2026-40858 is an unsafe deserialization vulnerability in the Apache Camel camel-infinispan component, specifically in its ProtoStream-based remote aggregation repository. The vulnerable code path deserializes data read from a remote Infinispan cache using java.io.ObjectInputStream without applying an ObjectInputFilter. If an attacker can place a crafted serialized Java object into the Infinispan cache used by the Camel application, that object may be deserialized during normal aggregation repository operations such as get or recover. Successful exploitation can trigger arbitrary code execution within the context of the affected Camel application. The issue affects Apache Camel versions 4.0.0 before 4.14.7, 4.15.0 before 4.18.2, and 4.19.0 before 4.20.0.
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Impact
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Exploits
2 valid exploits after Mallory filtered fakes, detection scripts, and README-only repos.
Repository contains a multi-PoC assessment for three Apache Camel 4.18.0 vulnerabilities, not a framework module. Structure is split into per-CVE Java applications under poc/cve-2026-33453-coap, poc/cve-2026-40473-mina, and poc/cve-2026-40858-infinispan; a docker-compose lab that exposes the vulnerable services; and three Python exploit scripts under poc/exploits. README.md and EXPLOITS-REPORT.md document root cause, attack flow, and reproduction steps. Main exploit capabilities: - CVE-2026-33453: exploit_cve_2026_33453_coap.py crafts raw CoAP UDP packets and injects CamelExecCommandExecutable/CamelExecCommandArgs as URI query parameters to override camel-exec behavior on /api/status. It is a direct unauthenticated network RCE PoC and parses CoAP responses to display command output. - CVE-2026-40473: exploit_cve_2026_40473_mina.py targets MINA TCP endpoints, especially raw TCP on 9879, and uses ysoserial-generated gadget chains for unsafe Java deserialization. It includes a callback listener to capture command output via HTTP POST/curl from the victim. The Java helper MinaGadgetGenerator builds MINA-compatible serialized gadget bytes, and MinaTestPayload validates wire compatibility. - CVE-2026-40858: exploit_cve_2026_40858_infinispan.py builds a Hot Rod PUT request to write malicious serialized bytes into an Infinispan cache entry used by Camel aggregation. This is a delayed-trigger exploit: code execution occurs when Camel later deserializes the cached object. It can use ysoserial if available or a demo serialized object otherwise. Repository purpose: to demonstrate exploitability of three claimed Apache Camel 4.18.0 issues in a controlled Docker lab. The Java apps intentionally expose vulnerable routes, while the Python scripts operationalize exploitation over UDP/TCP/cache protocols. The code is coherent, aligned with the documented CVEs, and clearly intended as working proof-of-concept exploit material rather than mere detection.
Repository is a multi-PoC research project for three Apache Camel 4.18.0 vulnerabilities, not a framework module. Structure is split into: (1) README and exploit report documenting root cause and reproduction, (2) three Java/Maven vulnerable demo applications under poc/cve-* with Dockerfiles, (3) docker-compose.yml to launch the lab, and (4) three Python exploit scripts under poc/exploits. The CoAP PoC demonstrates unauthenticated header injection over UDP/5683 by crafting raw CoAP packets with URI query parameters that become Camel headers, overriding camel-exec command settings and returning command output. The MINA PoC demonstrates unsafe Java deserialization over TCP on ports 9877/9878/9879; the most important path is 9879 with allowDefaultCodec=false, where raw IoBuffer data is converted into ObjectInputStream without filtering. Supporting Java utilities generate MINA-compatible serialized payloads and test framing. The Python MINA exploit can use ysoserial gadget chains and starts a local HTTP listener to capture exfiltrated command output via curl from the target. The Infinispan PoC demonstrates cache poisoning against a Camel aggregation repository backed by Infinispan; the Python exploit crafts a Hot Rod PUT request to write a malicious serialized object to a predictable cache key, relying on later deserialization by Camel to trigger execution. Overall, this is a real exploit repository with operational PoCs, local lab infrastructure, and clear network targets: CoAP UDP/5683, MINA TCP/9877-9879, and Infinispan Hot Rod TCP/11222.
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Recent activity
8 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
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