Description

Improper input validation in the Pulsar Function Worker allows a malicious authenticated user to execute arbitrary Java code on the Pulsar Function worker, outside of the sandboxes designated for running user-provided functions. This vulnerability also applies to the Pulsar Broker when it is configured with "functionsWorkerEnabled=true".

This issue affects Apache Pulsar versions from 2.4.0 to 2.10.5, from 2.11.0 to 2.11.3, from 3.0.0 to 3.0.2, from 3.1.0 to 3.1.2, and 3.2.0.

2.10 Pulsar Function Worker users should upgrade to at least 2.10.6.
2.11 Pulsar Function Worker users should upgrade to at least 2.11.4.
3.0 Pulsar Function Worker users should upgrade to at least 3.0.3.
3.1 Pulsar Function Worker users should upgrade to at least 3.1.3.
3.2 Pulsar Function Worker users should upgrade to at least 3.2.1.

Users operating versions prior to those listed above should upgrade to the aforementioned patched versions or newer versions.

Classification

CVE ID: CVE-2024-27135

Affected Products

Vendor: Apache Software Foundation

Product: Apache Pulsar

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.24% (probability of being exploited)

EPSS Percentile: 62.23% (scored less or equal to compared to others)

EPSS Date: 2025-03-14 (when was this score calculated)

References

https://lists.apache.org/thread/dh8nj2vmb2br6thjltq74lk9jxkz62wn
https://pulsar.apache.org/security/CVE-2024-27135/
http://www.openwall.com/lists/oss-security/2024/03/12/9

Timeline