SB2026092108 - Multiple vulnerabilities in Jenkins Script Security plugin
Published: September 21, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 8 vulnerabilities.
1) Protection mechanism failure (CVE-ID: CVE-2026-92122)
CWE-ID: CWE-693 - Protection Mechanism Failure
CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to insufficient implementation of security measures. A remote user can bypass the sandbox protection and execute arbitrary code in the context of the Jenkins controller JVM.
2) Protection mechanism failure (CVE-ID: CVE-2026-92129)
CWE-ID: CWE-693 - Protection Mechanism Failure
CVSSv4: 7.7 [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]
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to the affected plugin does not check calls from sandboxed scripts to methods added dynamically to a class at runtime. A remote user can bypass the sandbox protection and execute code outside the sandbox.
3) Download of code without integrity check (CVE-ID: CVE-2026-92128)
CWE-ID: CWE-494 - Download of Code Without Integrity Check
CVSSv4: 7.7 [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]
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to time-of-check time-of-use race condition in the video decoder. A remote user can execute arbitrary code in the context of the Jenkins controller JVM.
4) Code Injection (CVE-ID: CVE-2026-92127)
CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')
CVSSv4: 8.5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to the classpath approval bypass. A remote user can execute arbitrary code in the context of the Jenkins controller JVM.
5) Protection mechanism failure (CVE-ID: CVE-2026-92126)
CWE-ID: CWE-693 - Protection Mechanism Failure
CVSSv4: 7.7 [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]
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to the affected plugin does not reject @Builder annotations whose builderStrategy member names an arbitrary class. A remote user can execute arbitrary code outside the sandbox.
6) Code Injection (CVE-ID: CVE-2026-92125)
CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')
CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to insufficient implementation of security measures when the affected plugin does not reject the @GroovyASTTransformationClass annotation. A remote user can bypass the sandbox protection and execute arbitrary code in the context of the Jenkins controller JVM.
7) Protection mechanism failure (CVE-ID: CVE-2026-92124)
CWE-ID: CWE-693 - Protection Mechanism Failure
CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to insufficient implementation of security measures. A remote user can bypass the sandbox protection and execute arbitrary code in the context of the Jenkins controller JVM.
8) Protection mechanism failure (CVE-ID: CVE-2026-92123)
CWE-ID: CWE-693 - Protection Mechanism Failure
CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to the affected plugin does not intercept operations performed on a null receiver. A remote user can bypass the sandbox protection and execute arbitrary code in the context of the Jenkins controller JVM.
Remediation
Install update from vendor's website.