What is CVE-2026-33002?

CVE-2026-33002 is a high-severity vulnerability in Jenkins, classified under CWE-350. CVSS score: 7.5/10. Published 2026-03-18.

How severe is CVE-2026-33002?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Jenkins

CVE-2026-33002

Jenkins 2.442 through 2.554 (both inclusive), LTS 2.426.3 through LTS 2.541.2 (both inclusive) performs origin validation of requests made through the CLI WebSocket endpoint by computing the expected origin for comparison using the Host or…

EPSS: 0.003 (21.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Jenkins
Jenkins Project — versions 0, 2.427, 2.555

Weakness classification (CWE)

CWE-350

References

jenkinsci-cert@googlegroups.com (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2026-33002?: CVE-2026-33002 is a high-severity vulnerability in Jenkins, classified under CWE-350. CVSS score: 7.5/10. Published 2026-03-18.
How severe is CVE-2026-33002?: High severity. CVSS v3 base score is 7.5 out of 10.