What is CVE-2025-64137?

CVE-2025-64137 is a medium-severity vulnerability in Jenkins Themis, classified under Missing Authorization. CVSS score: 4.3/10. Published 2025-10-29.

How severe is CVE-2025-64137?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Jenkins Themis

CVE-2025-64137

A missing permission check in Jenkins Themis Plugin 1.4.1 and earlier allows attackers with Overall/Read permission to connect to an attacker-specified HTTP server.

Vulnerability class: Broken Access Control

Published 2025-10-29 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.003 (19.8th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 20th percentile — 19.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000

Affected products

Jenkins Themis
Jenkins Project Themis Plugin — versions 0

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

www.jenkins.io/security/advisory/2025-10-29/ (vendor-advisory, Vendor Advisory)
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2025-64137?: CVE-2025-64137 is a medium-severity vulnerability in Jenkins Themis, classified under Missing Authorization. CVSS score: 4.3/10. Published 2025-10-29.
How severe is CVE-2025-64137?: Medium severity. CVSS v3 base score is 4.3 out of 10.