CVE-2023-34409

Name: CVE-2023-34409
Creator: NVD / NIST
Published: 2023-06-06T20:15:14.333+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.28%

Last modified Jun 17, 2026

CVE-2023-34409 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. In Percona Monitoring and Management (PMM) server 2.x before 2.37.1, the authenticate function in auth_server.go does not properly formalize and sanitize URL paths to reject path traversal attempts. This allows an unauthenticated remote user, when a crafted POST request is made against unauthenticated API routes, to access otherwise protected API routes leading to escalation of privileges and information disclosure.. EPSS estimates a 1.28% chance of exploitation in the next 30 days.

Description

In Percona Monitoring and Management (PMM) server 2.x before 2.37.1, the authenticate function in auth_server.go does not properly formalize and sanitize URL paths to reject path traversal attempts. This allows an unauthenticated remote user, when a crafted POST request is made against unauthenticated API routes, to access otherwise protected API routes leading to escalation of privileges and information disclosure.

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

1.28%

66.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Percona	Monitoring And Management	>= 2.0.0, < 2.37.1

References

https://www.percona.com/blog/pmm-authentication-bypass-vulnerability-fixed-in-2-37-1/Vendor Advisory
https://www.percona.com/blog/pmm-authentication-bypass-vulnerability-fixed-in-2-37-1/Vendor Advisory

Timeline

Published: Jun 6, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-34409?

How severe is CVE-2023-34409?

CVE-2023-34409 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.28% probability of exploitation in the next 30 days.

How do I fix CVE-2023-34409?

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-2023-34409?

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

Scan your code now

Source: NVD / NIST