CVE-2020-2134
Sandbox bypass vulnerability in Script Security Plugin
Sandbox protection in Jenkins Script Security Plugin 1.70 and earlier could be circumvented through crafted constructor calls and crafted constructor bodies.
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
What each source reports
NVD Score used
Sandbox protection in Jenkins Script Security Plugin 1.70 and earlier could be circumvented through crafted constructor calls and crafted constructor bodies.
- Record
CVE-2020-2134- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.5 Medium
AV:N/AC:L/Au:S/C:P/I:P/A:P - Weakness
- CWE-863
- Updated
- 2026-11-02
CVE List No score
Sandbox protection in Jenkins Script Security Plugin 1.70 and earlier could be circumvented through crafted constructor calls and crafted constructor bodies.
- Record
CVE-2020-2134- Updated
- 2026-11-02
EUVDEUVD-2022-3963 No score
Sandbox protection in Jenkins Script Security Plugin 1.70 and earlier could be circumvented through crafted constructor calls and crafted constructor bodies.
- Record
EUVD-2022-3963- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-gj3q-p8cm-26rm
Sandbox bypass vulnerability in Script Security Plugin
Sandbox protection in Script Security Plugin 1.70 and earlier can be circumvented through:
- Crafted constructor calls and bodies (due to an incomplete fix of SECURITY-582)
- Crafted method calls on objects that implement
GroovyInterceptable
This allows attackers able to specify and run sandboxed scripts to execute arbitrary code in the context of the Jenkins controller JVM.
Script Security Plugin 1.71 has additional restrictions and sanity checks to ensure that super constructors cannot be constructed without being intercepted by the sandbox. In addition, it also intercepts method calls on objects that implement GroovyInterceptable as calls to GroovyObject#invokeMethod(String, Object), which is on the list of dangerous signatures and should not be approved for use in the sandbox.
- Record
GHSA-gj3q-p8cm-26rm- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-693, CWE-863
- Updated
- 2026-11-02
OSV
Sandbox protection in Jenkins Script Security Plugin 1.70 and earlier could be circumvented through crafted constructor calls and crafted constructor bodies.
- Record
CVE-2020-2134- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVGHSA-gj3q-p8cm-26rm
Sandbox bypass vulnerability in Script Security Plugin
Sandbox protection in Script Security Plugin 1.70 and earlier can be circumvented through:
- Crafted constructor calls and bodies (due to an incomplete fix of SECURITY-582)
- Crafted method calls on objects that implement
GroovyInterceptable
This allows attackers able to specify and run sandboxed scripts to execute arbitrary code in the context of the Jenkins controller JVM.
Script Security Plugin 1.71 has additional restrictions and sanity checks to ensure that super constructors cannot be constructed without being intercepted by the sandbox. In addition, it also intercepts method calls on objects that implement GroovyInterceptable as calls to GroovyObject#invokeMethod(String, Object), which is on the list of dangerous signatures and should not be approved for use in the sandbox.
- Record
GHSA-gj3q-p8cm-26rm- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-693, CWE-863
- Updated
- 2026-11-02
OSVRHSA-2020:2478
Red Hat Security Advisory: OpenShift Container Platform 3.11 jenkins-2-plugins security update
- Record
RHSA-2020:2478- CVSS 3.1
- 8.8 High
CVSS: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
Red Hat Security Advisory: OpenShift Container Platform 4.4.z jenkins-2-plugins security update
- Record
RHSA-2020:2737- CVSS 3.1
- 8.8 High
CVSS: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
Red Hat Security Advisory: OpenShift Container Platform 4.3.35 jenkins-2-plugins security update
- Record
RHSA-2020:3616- CVSS 3.1
- 8.8 High
CVSS: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
| Package | Affected | Fixed |
|---|---|---|
org.jenkins-ci.plugins:script-securityMaven |
before 1.7.1 | 1.7.1 |
org.jenkins-ci.plugins:script-securityMaven |
before 1.7.1, plus listed versions 1.01.0-beta-11.0-beta-21.0-beta-31.0-beta-4 Show 9 moreShow less1.0-beta-51.0-beta-61.11.21.31.41.51.61.7 |
1.7.1 |
jenkins-2-pluginsRed 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-pluginsRed 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-pluginsRed 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
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-2134 is a high vulnerability (CVSS 8.8) in Jenkins Script Security, published March 9, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.01%, the 63rd percentile. Fixed in org.jenkins-ci.plugins:script-security 1.7.1.
References
jenkins.io/security/advisory/2020-03-09
openwall.com/lists/oss-security/2020/03/09/1
nvd.nist.gov/vuln/detail/CVE-2020-2134
github.com/jenkinsci/script-security-plugin/commit/5b1969e0bdf5cde04a165b847144756b28495788
Show 41 moreShow less
access.redhat.com/errata/RHSA-2020:2478
bugzilla.redhat.com/show_bug.cgi?id=1819074
security.access.redhat.com/data/csaf/v2/advisories/2020/rhsa-2020_2478.json
cve.org/CVERecord?id=CVE-2019-10392