What is CVE-2026-53441?

CVE-2026-53441 is a medium-severity vulnerability in Jenkins, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-06-10.

How severe is CVE-2026-53441?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Jenkins

CVE-2026-53441

Jenkins 2.483 through 2.567 (both inclusive), LTS 2.492.1 through 2.555.2 (both inclusive) does not escape the user-provided description of a generic offline cause that could be set through the `POST config.xml` API, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Agent/Configure permission.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2026-06-10 · last modified 2026-07-06.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.003 (25.0th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 25th percentile — 25.0% 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: +0.001

Affected products

Jenkins
Jenkins Project — versions 0, 2.568, 2.555.3

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.jenkins.io/security/advisory/2026-06-10/ (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2026-53441?: CVE-2026-53441 is a medium-severity vulnerability in Jenkins, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-06-10.
How severe is CVE-2026-53441?: Medium severity. CVSS v3 base score is 5.4 out of 10.