CVE-2023-31039: Apache bRPC: ServerOptions.pid_file may cause arbitrary code execution

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-05-08 · updated 2026-10-24
Weakness: CWE-20

Description

Security vulnerability in Apache bRPC <1.5.0 on all platforms allows attackers to execute arbitrary code via ServerOptions::pid_file. An attacker that can influence the ServerOptions pid_file parameter with which the bRPC server is started can execute arbitrary code with the permissions of the bRPC process. Solution: 1. upgrade to bRPC >= 1.5.0, download link: https://dist.apache.org/repos/dist/release/brpc/1.5.0/ https://dist.apache.org/repos/dist/release/brpc/1.5.0/ 2. If you are using an old version of bRPC and hard to upgrade, you can apply this patch: https://github.com/apache/brpc/pull/2218 https://github.com/apache/brpc/pull/2218

Affected products

Apache Software Foundation Apache bRPC: from 0.9.0 before 1.5.0 — fixed in 1.5.0

How to fix

Upgrade to a fixed version: Apache Software Foundation Apache bRPC 1.5.0. Check the vendor advisory for mitigations.

References

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