CRLF injection in Script Security - CVE-2026-57281
Published: June 29, 2026
Vulnerability identifier: #VU135695
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-57281
CWE-ID: CWE-93
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Jenkins
Affected software:
Script Security
Script Security
Detailed vulnerability description
The vulnerability allows a remote attacker to inject arbitrary data in server response.
The vulnerability exists due to insufficient validation of attacker-supplied data. A remote user can execute arbitrary code outside the sandbox if a suitable script is present on the classpath of the component that evaluates the script
How to mitigate CVE-2026-57281
Install updates from vendor's website.