What is CVE-2026-57281?

CVE-2026-57281 is a high-severity vulnerability in Jenkins Project Script Security Plugin, classified under CRLF Injection. CVSS score: 7.5/10. Published 2026-06-24.

How severe is CVE-2026-57281?

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

Vulnerability in Jenkins Project Script Security Plugin

CVE-2026-57281

Jenkins Script Security Plugin 1402.v94c9ce464861 and earlier does not reject Groovy AST transformation annotations carrying an extensions member, allowing attackers able to run sandboxed Groovy scripts to execute code outside the sandbox…

Vulnerability class: CRLF Injection

CVSS v3 metric

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

Affected products

Jenkins Project Script Security Plugin — versions 0

Weakness classification (CWE)

CWE-93 — CRLF Injection
CWE-693 — Protection Mechanism Failure

References

jenkinsci-cert@googlegroups.com (vendor-advisory)

Frequently asked questions

What is CVE-2026-57281?: CVE-2026-57281 is a high-severity vulnerability in Jenkins Project Script Security Plugin, classified under CRLF Injection. CVSS score: 7.5/10. Published 2026-06-24.
How severe is CVE-2026-57281?: High severity. CVSS v3 base score is 7.5 out of 10.