CVE-2023-45146: Remote code execution in XXL-RPC

Severity: critical (CVSS 10.0 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-10-18 · updated 2026-06-17
Weakness: CWE-502

Description

XXL-RPC is a high performance, distributed RPC framework. With it, a TCP server can be set up using the Netty framework and the Hessian serialization mechanism. When such a configuration is used, attackers may be able to connect to the server and provide malicious serialized objects that, once deserialized, force it to execute arbitrary code. This can be abused to take control of the machine the server is running by way of remote code execution. This issue has not been fixed.

Affected products

xuexueli xxl-rpc: through 1.7.0

References

https://securitylab.github.com/advisories/GHSL-2023-052_XXL-RPC/
https://securitylab.github.com/advisories/GHSL-2023-052_XXL-RPC/
https://www.vicarius.io/vsociety/posts/xxl-rpc-rce-cve-2023-45146

Get alerted when CVE-2023-45146 or the next vulnerability affects your stack