A PoC/exploit has been discovered for vulnerability CVE-2026-40048 PT ID: PT-2026-35369 Vendor: Apache Software Foundation Product: Apache Camel PQC Description: The Camel-PQC FileBasedKeyLifecycleManager class deserializes the contents of <keyId>.key files in the configured key directory using http://java.io.ObjectInputStream without applying any ObjectInputFilter or class-loading restrictions. The cast to http://java.security.KeyPair is evaluated only after readObject() has already returned, so any readObject() side effects in the deserialized object run before the type check. An attacker who can write to the key directory used by a Camel application — for example through a path traversal into the directory, misconfigured filesystem permissions on the volume where keys are stored, a compromised key provisioning pipeline, or a symlink attack — can place a crafted serialized Java object that, when deserialized during normal key lifecycle operations, results in arbitrary code execution in the context of the application. This issue affects Apache Camel: from 4.19.0 before 4.20.0, from 4.18.0 before 4.18.2. References: • https://dbugs.ptsecurity.com/vulnerability/PT-2026-35369 • https://github.com/oscerd/CVE-2026-40048 #dbugs_vuln
Post summary
A proof‑of‑concept exploit for CVE‑2026‑40048 is publicly available, outlining deserialization‑based arbitrary code execution in Apache Camel PQC, yet there is no evidence of current active exploitation or patch information.
