Jenkins Blue Ocean Plugin cross-site request forgery vulnerability

published 2023-08-16 3 y ago modified 2026-06-17 4 mo ago also GHSA-g4pq-p927-7pgg , EUVD-2023-2288

cvss: 8.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 50%
public exploits: 0; none known

A cross-site request forgery (CSRF) vulnerability in Jenkins Blue Ocean Plugin 1.27.5 and earlier allows attackers to connect to an attacker-specified URL, capturing GitHub credentials associated with an attacker-specified job.

Patch / fix

fixed in 2 distros 1

maven io.jenkins.blueocean:blueocean 1.27.5.1
Jenkins Project Jenkins Blue Ocean Plugin 1.27.4.1, 1.27.5.1

jenkins ocp tools 4.14 2.426.3.1706516352-3.el8
jenkins-2-plugins ocp tools 4.14 4.14.1706516441-1.el8
jenkins ocp tools 4.12 2.426.3.1706515686-3.el8
jenkins-2-plugins ocp tools 4.12 4.12.1706515741-1.el8

red hat advisories RHSA-2024:0777 RHSA-2024:0778

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-40341 updated 2026-11-03 cvss 5.4

jenkins-plugins: blueocean: CSRF vulnerability in Blue Ocean Plugin allows capturing credentials

Red Hat OpenShift Container Platform 4 jenkins-2-plugins
affected: no fix available
Red Hat OpenShift Developer Tools and Services for OCP 4.12 jenkins-2-plugins 4.12.1706515741-1.el8
fixed: vendor fix RHSA-2024:0778
Red Hat OpenShift Developer Tools and Services for OCP 4.14 jenkins-2-plugins 4.14.1706516441-1.el8
fixed: vendor fix RHSA-2024:0777
Red Hat OpenShift Developer Tools and Services for OCP 4.12 jenkins 2.426.3.1706515686-3.el8 Red Hat OpenShift Developer Tools and Services for OCP 4.14 jenkins 2.426.3.1706516352-3.el8
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 2 y ago (2024-10-08)

Exploit prediction

0.62% chance of exploitation in the next 30 days, higher than 50% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
GitHub	3.1	5.4	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Affected packages

ecosystem	package	affected	fixed in
maven	io.jenkins.blueocean:blueocean	<1.27.5.1	1.27.5.1

Affected products

Jenkins Project Jenkins Blue Ocean Plugin

Classification

Weakness

CWE-352 Cross-Site Request Forgery

References

jenkins.io /security/advisory/2023-08-16/#SECURITY-3116
vendor-advisory, web
openwall.com /lists/oss-security/2023/08/16/3
web, mailing-list, third-party-advisory
nvd.nist.gov /vuln/detail/CVE-2023-40341
advisory

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary