CVE-2023-31039

Name: CVE-2023-31039
Creator: NVD / NIST
Published: 2023-05-08T09:15:09.637+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.52%

Last modified Jun 17, 2026

CVE-2023-31039 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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. EPSS estimates a 1.52% chance of exploitation in the next 30 days.

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

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.52%

71.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Apache	Brpc	>= 0.9.0, < 1.5.0

References

http://www.openwall.com/lists/oss-security/2023/05/08/1Mailing List, Patch, Third Party Advisory
https://lists.apache.org/thread/jqpttrqbc38yhckgp67xk399hqxnz7jnMailing List, Patch, Vendor Advisory
http://www.openwall.com/lists/oss-security/2023/05/08/1Mailing List, Patch, Third Party Advisory
https://lists.apache.org/thread/jqpttrqbc38yhckgp67xk399hqxnz7jnMailing List, Patch, Vendor Advisory

Timeline

Published: May 8, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-31039?

How severe is CVE-2023-31039?

CVE-2023-31039 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.52% probability of exploitation in the next 30 days.

How do I fix CVE-2023-31039?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-31039?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST