CVE-2019-16538

Incorrect Authorization in Jenkins Script Security Plugin

8.8 HighFix available

A sandbox bypass vulnerability in Jenkins Script Security Plugin 1.67 and earlier related to the handling of default parameter expressions in closures allowed attackers to execute arbitrary code in sandboxed scripts.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

1.67%Up 0.6 points since Apr 14, 2021

What each source reports

NVD Score used 8.8

Record: CVE-2019-16538
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0: 6.5 MediumAV:N/AC:L/Au:S/C:P/I:P/A:P
Weakness: CWE-863
Updated: 2026-11-02

CVE List No score

Record: CVE-2019-16538
Updated: 2026-11-02

EUVDEUVD-2022-2690 No score

Record: EUVD-2022-2690
Updated: 2026-11-03

GitHub AdvisoriesGHSA-62pm-mgrh-7p69 8.8

Incorrect Authorization in Jenkins Script Security Plugin

Record: GHSA-62pm-mgrh-7p69
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-863
Updated: 2026-11-02

OSV 8.8

Record: CVE-2019-16538
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVGHSA-62pm-mgrh-7p69 8.8

Incorrect Authorization in Jenkins Script Security Plugin

Record: GHSA-62pm-mgrh-7p69
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-863
Updated: 2026-11-02

OSVRHSA-2020:2478 8.8

Red Hat Security Advisory: OpenShift Container Platform 3.11 jenkins-2-plugins security update

Record: RHSA-2020:2478
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVRHSA-2020:2737 8.8

Red Hat Security Advisory: OpenShift Container Platform 4.4.z jenkins-2-plugins security update

Record: RHSA-2020:2737
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVRHSA-2020:3616 8.8

Red Hat Security Advisory: OpenShift Container Platform 4.3.35 jenkins-2-plugins security update

Record: RHSA-2020:3616
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`org.jenkins-ci.plugins:script-security` Maven	through 1.67	1.68
`org.jenkins-ci.plugins:script-security` Maven	before 1.68, plus listed versions 1.01.0-beta-11.0-beta-21.0-beta-31.0-beta-4 Show 45 moreShow less 1.0-beta-51.0-beta-61.11.101.111.121.131.141.151.161.171.181.18.11.191.21.201.211.221.231.241.251.261.271.281.291.29.11.31.301.311.331.341.351.361.371.381.391.41.401.411.421.431.441.44.11.451.46	1.68
`jenkins-2-plugins` Red Hat:openshift:3.11::el7 From an advisory covering 8 CVEs	before 0:3.11.1591354111-1.el7	0:3.11.1591354111-1.el7
`jenkins-2-plugins` Red Hat:openshift:4.4::el7 From an advisory covering 7 CVEs	before 0:4.4.1592817009-1.el7	0:4.4.1592817009-1.el7
`jenkins-2-plugins` Red Hat:openshift:4.3::el7 From an advisory covering 7 CVEs	before 0:4.3.1597915133-1.el7	0:4.3.1597915133-1.el7

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2019-16538 is a high vulnerability (CVSS 8.8) in Jenkins Script Security, published November 21, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.67%, the 76th percentile. Fixed in org.jenkins-ci.plugins:script-security 1.68.

References

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This page doesn't list everything

Left out here: 44 versions. The JSON record has them.