No exploitation reportedFix available

CVE-2023-34409

Q: Is CVE-2023-34409 actively exploited?

Active exploitation of CVE-2023-34409 has not been confirmed. Its EPSS score was 1.3% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2023-34409?

CVE-2023-34409 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

No exploitation reported by the sources we read.

Published2023-06-06
Fixed in2.37.1
WeaknessCWE-22

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC

2023-06-0620:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-34409?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-34409?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Percona monitoring and management

Branch	Affected	Fixed in	Source
2.x	≥ 2.0.0, < 2.37.1	2.37.1	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Percona monitoring and management to 2.37.1

Advisories and patches

www.percona.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionnone2025-01-08
OpenCVESSVC decisionnone—
CISA-ADPCVSS 3.19.82025-01-08
NVDCVSS 3.19.8read 2026-10-23
CISA-ADPweakness (CWE)CWE-222025-01-08
NVDweakness (CWE)CWE-22read 2026-10-23
FIRST EPSSEPSS score1.3 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2023-06-06
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2023-34409?

Is CVE-2023-34409 actively exploited?

Active exploitation of CVE-2023-34409 has not been confirmed. Its EPSS score was 1.3% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2023-34409?

CVE-2023-34409 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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