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CVE-2026-33701 is a critical severity vulnerability with a CVSS score of 9.8. No known exploits currently, and patches are available.
Very low probability of exploitation
EPSS predicts the probability of exploitation in the next 30 days based on real-world threat data, complementing CVSS severity scores with actual risk assessment.
In versions prior to 2.26.1, the RMI instrumentation registered a custom endpoint that deserialized incoming data without applying serialization filters. An attacker with network access to a JMX or RMI port on an instrumented JVM could exploit this to potentially achieve remote code execution. All three of the following conditions must be true to exploit this vulnerability:
-javaagent)Arbitrary remote code execution with the privileges of the user running the instrumented JVM.
Upgrade to version 2.26.1 or later.
Set the following system property to disable the RMI integration:
-Dotel.instrumentation.rmi.enabled=false
This vulnerability was responsibly disclosed in coordination with Datadog.
| Vendor | Product |
|---|---|
| Linuxfoundation | Opentelemetry Instrumentation For Java |
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