CVE-2023-31039

CRITICAL
INFO Priority: 0.15 BB Relevance: 80/100
Published: 2023-05-08 Modified: 2026-10-24 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: High
I: High
A: High

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

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
apache brpc 0.9.0 – 1.5.0

References & Advisories (2)

http://www.openwall.com/lists/oss-security/2023/05/08/1
Mailing List Patch Third Party Advisory

Bug Bounty Relevance

80 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

9.8 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploitation Probability

1.52%
Raw Score 0.015220
Percentile 74.6%
Date 2026-10-29

EPSS Trend

2026-10-29
0.01522
2026-10-28
0.01522

Intelligence Sources

nvd ref →