Jenkins: Missing permission check allows unauthorized cancellation of queue items

published 2026-06-10 4 mo ago modified 2026-10-26 13 d ago also BIT-jenkins-2026-53438 , EUVD-2026-36022 , GHSA-mw82-xcg6-gx79

cvss: 4.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 10%
public exploits: 0; none known

A missing permission check in Jenkins 2.567 and earlier, LTS 2.555.2 and earlier allows attackers with Item/Cancel permission, but lacking Item/Read permission, to cancel queue items they do not have permission to view.

Patch / fix

fixed in 3 links 2

maven org.jenkins-ci.main:jenkins-core 2.555.3, 2.568
bitnami jenkins 2.555.3, 2.568.0
Jenkins Project Jenkins 2.568

github.com/jenkinsci/jenkins@a154e11 commit
github.com/jenkinsci/jenkins@d22d091 commit

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-2026-53438 updated 2026-06-28 cvss 6.5

jenkins: Jenkins: Unauthorized cancellation of queue items due to missing permission check

Red Hat OpenShift Developer Tools and Services jenkins
affected: no fix available “Fix deferred”

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: partial
Assessed: 4 mo ago (2026-06-10)

Exploit prediction

0.21% chance of exploitation in the next 30 days, higher than 10% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	4.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
GitHub	3.1	4.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
CNA	3.1	4.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
OSV	3.1	4.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Affected packages

ecosystem	package	affected	fixed in
maven	org.jenkins-ci.main:jenkins-core	<2.555.3 >=2.556, <2.568	2.555.3 2.568
bitnami	jenkins	<2.555.3 >=2.556.0, <2.568.0	2.555.3 2.568.0

Affected products

Jenkins Project Jenkins

Classification

Weakness

CWE-862 Missing Authorization

Technology feeds

Jenkins rss critical rss

References

github.com /jenkinsci/jenkins/commit/a154e1108f3170dc036ecbe6b2a89f164ff1554e
web
github.com /jenkinsci/jenkins/commit/d22d0916148a430dd308760641539d06c0d8a184
web
jenkins.io /security/advisory/2026-06-10/#SECURITY-3712
vendor-advisory, web, advisory
nvd.nist.gov /vuln/detail/CVE-2026-53438
advisory, web
github.com /jenkinsci/jenkins
package

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.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.

Summary